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GMC Sierra 1500 Headroom (2002-2026)

Researched By The AutoPadre Research Team

Last Updated 2026-09-02

The GMC Sierra 1500 headroom in the first row is a minimum of 39.88 inches and a maximum of 43.11 inches.

The GMC Sierra 1500 has a minimum of 38.4 inches and a maximum of 40.6 inches of headroom in the second row.

Check out the Headroom specifications for other makes and models.

2026 GMC Sierra 1500 Headroom

In the first row, the 2026 GMC Sierra 1500 headroom is between 39.88 inches and 43.11 inches.

2026 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" AT4 Truck	3.0L \| Turbo \| 6 Cyl. \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" AT4X Truck	3.0L \| Turbo \| 6 Cyl. \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	39.88 in.	40.12 in.
Crew Cab 147" Denali Truck	5.3L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| RWD	43.03 in.	40.12 in.
Crew Cab 147" Denali Truck	5.3L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" Denali Ultimate Truck	6.2L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	40.12 in.

2026 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" Elevation w/ 3SB Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" Elevation w/ 3VL Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	40.12 in.
Crew Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	40.12 in.
Crew Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.

2026 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" SLT Truck	5.3L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	40.12 in.
Crew Cab 147" SLT Truck	5.3L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" AT4 Truck	3.0L \| Turbo \| 6 Cyl. \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" Denali Truck	5.3L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.

2026 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 157" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" SLT Truck	5.3L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Double Cab 147" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	39.88 in.
Double Cab 147" Elevation w/ 3SB Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	39.88 in.
Double Cab 147" Elevation w/ 3VL Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	39.88 in.
Double Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	39.88 in.

2026 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Double Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	39.88 in.
Double Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	39.88 in.
Double Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	39.88 in.
Reg Cab 126" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.11 in.
Reg Cab 126" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.11 in.
Reg Cab 140" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.11 in.

2026 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
Reg Cab 140" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.11 in.

2026 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" AT4 Truck	3.0L \| Turbo \| 6 Cyl. \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" AT4X Truck	3.0L \| Turbo \| 6 Cyl. \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	101 cm.	102 cm.
Crew Cab 147" Denali Truck	5.3L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| RWD	109 cm.	102 cm.
Crew Cab 147" Denali Truck	5.3L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" Denali Ultimate Truck	6.2L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	102 cm.

2026 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" Elevation w/ 3SB Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" Elevation w/ 3VL Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	102 cm.
Crew Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	102 cm.
Crew Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.

2026 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" SLT Truck	5.3L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	102 cm.
Crew Cab 147" SLT Truck	5.3L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" AT4 Truck	3.0L \| Turbo \| 6 Cyl. \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" Denali Truck	5.3L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.

2026 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 157" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" SLT Truck	5.3L \| 8 Cyl. \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Double Cab 147" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
Double Cab 147" Elevation w/ 3SB Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Double Cab 147" Elevation w/ 3VL Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Double Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.

2026 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Double Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Double Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
Double Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Reg Cab 126" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.
Reg Cab 126" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.
Reg Cab 140" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.

2026 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
Reg Cab 140" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.

2025 GMC Sierra 1500 Headroom

In the first row, the 2025 GMC Sierra 1500 headroom is between 43.03 inches and 43.11 inches.

2025 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" Denali Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| RWD	43.03 in.	40.12 in.
Crew Cab 147" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	40.12 in.
Crew Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	40.12 in.
Crew Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	40.12 in.
Crew Cab 147" SLT Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	40.12 in.
Double Cab 147" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	39.88 in.

2025 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Double Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	39.88 in.
Double Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	39.88 in.
Reg Cab 126" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.11 in.
Reg Cab 140" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.11 in.
Crew Cab 147" AT4 Truck	3.0L \| Turbo \| 6 \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" AT4X Truck	3.0L \| Turbo \| 6 \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.

2025 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" Denali Ultimate Truck	6.2L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" Denali Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" Elevation w/ 3SB Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" Elevation w/ 3VL Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.

2025 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" SLT Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" AT4 Truck	3.0L \| Turbo \| 6 \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" Denali Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.

2025 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 157" SLT Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Double Cab 147" Elevation w/ 3SB Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	39.88 in.
Double Cab 147" Elevation w/ 3VL Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	39.88 in.
Double Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	39.88 in.
Double Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	39.88 in.
Reg Cab 126" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.11 in.

2025 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
Reg Cab 140" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.11 in.

2025 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" Denali Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| RWD	109 cm.	102 cm.
Crew Cab 147" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	102 cm.
Crew Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	102 cm.
Crew Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	102 cm.
Crew Cab 147" SLT Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	102 cm.
Double Cab 147" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.

2025 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Double Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
Double Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
Reg Cab 126" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.
Reg Cab 140" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.
Crew Cab 147" AT4 Truck	3.0L \| Turbo \| 6 \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" AT4X Truck	3.0L \| Turbo \| 6 \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.

2025 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" Denali Ultimate Truck	6.2L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" Denali Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" Elevation w/ 3SB Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" Elevation w/ 3VL Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.

2025 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" SLT Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" AT4 Truck	3.0L \| Turbo \| 6 \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" Denali Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.

2025 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 157" SLT Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Double Cab 147" Elevation w/ 3SB Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Double Cab 147" Elevation w/ 3VL Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Double Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Double Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Reg Cab 126" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.

2025 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
Reg Cab 140" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.

2024 GMC Sierra 1500 Headroom

In the first row, the 2024 GMC Sierra 1500 headroom is between 43.03 inches and 43.11 inches.

2024 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" Denali Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| RWD	43.03 in.	40.12 in.
Crew Cab 147" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	40.12 in.
Crew Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	40.12 in.
Crew Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	40.12 in.
Crew Cab 147" SLT Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	40.12 in.
Double Cab 147" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	39.88 in.

2024 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Double Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	39.88 in.
Double Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.03 in.	39.88 in.
Reg Cab 126" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.11 in.
Reg Cab 140" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43.11 in.
Crew Cab 147" AT4 Truck	3.0L \| Turbo \| 6 \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" AT4X Truck	3.0L \| Turbo \| 6 \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.

2024 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" Denali Ultimate Truck	6.2L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" Denali Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" Elevation w/ 3SB Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" Elevation w/ 3VL Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.

2024 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" SLT Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" AT4 Truck	3.0L \| Turbo \| 6 \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" Denali Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Crew Cab 157" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.

2024 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 157" SLT Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	40.12 in.
Double Cab 147" Elevation w/ 3SB Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	39.88 in.
Double Cab 147" Elevation w/ 3VL Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	39.88 in.
Double Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	39.88 in.
Double Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.03 in.	39.88 in.
Reg Cab 126" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.11 in.

2024 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
Reg Cab 140" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43.11 in.

2024 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" Denali Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| RWD	109 cm.	102 cm.
Crew Cab 147" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	102 cm.
Crew Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	102 cm.
Crew Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	102 cm.
Crew Cab 147" SLT Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	102 cm.
Double Cab 147" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.

2024 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Double Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
Double Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
Reg Cab 126" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.
Reg Cab 140" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.
Crew Cab 147" AT4 Truck	3.0L \| Turbo \| 6 \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" AT4X Truck	3.0L \| Turbo \| 6 \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.

2024 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" Denali Ultimate Truck	6.2L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" Denali Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" Elevation w/ 3SB Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" Elevation w/ 3VL Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.

2024 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 147" SLT Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" AT4 Truck	3.0L \| Turbo \| 6 \| Duramax \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" Denali Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" Elevation Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Crew Cab 157" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.

2024 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 157" SLT Truck	5.3L \| 8 \| EcoTec3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	102 cm.
Double Cab 147" Elevation w/ 3SB Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Double Cab 147" Elevation w/ 3VL Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Double Cab 147" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Double Cab 147" SLE Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Reg Cab 126" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.

2024 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
Reg Cab 140" Pro Truck	TurboMax \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.

2023 GMC Sierra 1500 Headroom

In the first row, the 2023 GMC Sierra 1500 headroom is 43 inches.

The second row headroom of the 2023 GMC Sierra 1500 is 40 inches.

2023 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Denali Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| RWD	43 in.	40 in.
Denali Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43 in.	40 in.
Denali Crew Cab 157" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43 in.	40 in.
Elevation Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	40 in.
Elevation Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	39 in.
Elevation Crew Cab 147" w/ 3SB Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.

2023 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Elevation Crew Cab 147" w/ 3VL Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
Elevation Crew Cab 157" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
Elevation Double Cab 147" w/ 3SB Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	39 in.
Elevation Double Cab 147" w/ 3VL Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	39 in.
Pro Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	40 in.
Pro Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	39 in.

2023 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Pro Reg Cab 126" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.
Pro Reg Cab 140" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.
Pro Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
Pro Crew Cab 157" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
Pro Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	39 in.
Pro Reg Cab 126" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.

2023 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Pro Reg Cab 140" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.
SLE Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	40 in.
SLE Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	39 in.
SLE Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
SLE Crew Cab 157" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
SLE Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	39 in.

2023 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
SLT Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	40 in.
SLT Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
SLT Crew Cab 157" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
AT4 Crew Cab 147" Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43 in.	40 in.
AT4 Crew Cab 157" Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43 in.	40 in.
AT4X Crew Cab 147" Truck	6.2L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43 in.	40 in.

2023 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Denali Ultimate Crew Cab 147" Truck	6.2L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43 in.	40 in.

2023 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Denali Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| RWD	109 cm.	101 cm.
Denali Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	101 cm.
Denali Crew Cab 157" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	101 cm.
Elevation Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
Elevation Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	99 cm.
Elevation Crew Cab 147" w/ 3SB Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.

2023 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Elevation Crew Cab 147" w/ 3VL Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Elevation Crew Cab 157" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Elevation Double Cab 147" w/ 3SB Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	99 cm.
Elevation Double Cab 147" w/ 3VL Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	99 cm.
Pro Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
Pro Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	99 cm.

2023 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Pro Reg Cab 126" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.
Pro Reg Cab 140" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.
Pro Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Pro Crew Cab 157" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Pro Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	99 cm.
Pro Reg Cab 126" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.

2023 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Pro Reg Cab 140" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.
SLE Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
SLE Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	99 cm.
SLE Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
SLE Crew Cab 157" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
SLE Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	99 cm.

2023 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
SLT Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
SLT Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
SLT Crew Cab 157" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
AT4 Crew Cab 147" Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	101 cm.
AT4 Crew Cab 157" Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	101 cm.
AT4X Crew Cab 147" Truck	6.2L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	101 cm.

2023 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Denali Ultimate Crew Cab 147" Truck	6.2L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	101 cm.

2022 GMC Sierra 1500 Headroom

In the first row, the 2022 GMC Sierra 1500 headroom is 43 inches.

The second row headroom of the 2022 GMC Sierra 1500 is 40 inches.

2022 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Denali Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| RWD	43 in.	40 in.
Denali Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43 in.	40 in.
Denali Crew Cab 157" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43 in.	40 in.
Elevation Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	40 in.
Elevation Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	39 in.
Elevation Crew Cab 147" w/ 3SB Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.

2022 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Elevation Crew Cab 147" w/ 3VL Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
Elevation Crew Cab 157" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
Elevation Double Cab 147" w/ 3SB Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	39 in.
Elevation Double Cab 147" w/ 3VL Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	39 in.
Pro Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	40 in.
Pro Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	39 in.

2022 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Pro Reg Cab 126" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.
Pro Reg Cab 140" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.
Pro Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
Pro Crew Cab 157" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
Pro Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	39 in.
Pro Reg Cab 126" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.

2022 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Pro Reg Cab 140" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.
SLE Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	40 in.
SLE Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	39 in.
SLE Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
SLE Crew Cab 157" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
SLE Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	39 in.

2022 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
SLT Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	43 in.	40 in.
SLT Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
SLT Crew Cab 157" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	43 in.	40 in.
AT4 Crew Cab 147" Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43 in.	40 in.
AT4 Crew Cab 157" Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43 in.	40 in.
AT4X Crew Cab 147" Truck	6.2L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43 in.	40 in.

2022 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Denali Ultimate Crew Cab 147" Truck	6.2L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	43 in.	40 in.
Limited Denali Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Limited Denali Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Limited Denali Crew Cab 157" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Limited Elevation Crew Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Limited Elevation Double Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39 in.

2022 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Limited Elevation Crew Cab 147" w/ 3SB Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Limited Elevation Crew Cab 147" w/ 3VL Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Limited Elevation Crew Cab 157" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Limited Elevation Double Cab 147" w/ 3SB Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.
Limited Elevation Double Cab 147" w/ 3VL Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.
Limited Pro Crew Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.

2022 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Limited Pro Double Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39 in.
Limited Pro Reg Cab 140" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.
Limited Pro Crew Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Limited Pro Crew Cab 157" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Limited Pro Double Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.
Limited Pro Reg Cab 140" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.

2022 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Limited SLE Crew Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Limited SLE Double Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39 in.
Limited SLE Crew Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Limited SLE Crew Cab 157" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Limited SLE Double Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.
Limited SLT Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.

2022 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Limited SLT Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Limited SLT Crew Cab 157" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Limited AT4 Crew Cab 147" Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Limited AT4 Crew Cab 157" Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.

2022 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Denali Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| RWD	109 cm.	101 cm.
Denali Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	101 cm.
Denali Crew Cab 157" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	101 cm.
Elevation Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
Elevation Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	99 cm.
Elevation Crew Cab 147" w/ 3SB Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.

2022 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Elevation Crew Cab 147" w/ 3VL Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Elevation Crew Cab 157" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Elevation Double Cab 147" w/ 3SB Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	99 cm.
Elevation Double Cab 147" w/ 3VL Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	99 cm.
Pro Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
Pro Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	99 cm.

2022 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Pro Reg Cab 126" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.
Pro Reg Cab 140" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.
Pro Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Pro Crew Cab 157" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
Pro Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	99 cm.
Pro Reg Cab 126" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.

2022 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Pro Reg Cab 140" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.
SLE Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
SLE Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	99 cm.
SLE Crew Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
SLE Crew Cab 157" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
SLE Double Cab 147" Truck	2.7L \| Turbo \| HIGH-OUTPUT \| 8 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	99 cm.

2022 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
SLT Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| RWD	109 cm.	101 cm.
SLT Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
SLT Crew Cab 157" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, (Column Shifter) Electronically Controlled \| 4WD	109 cm.	101 cm.
AT4 Crew Cab 147" Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	101 cm.
AT4 Crew Cab 157" Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	101 cm.
AT4X Crew Cab 147" Truck	6.2L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	101 cm.

2022 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Denali Ultimate Crew Cab 147" Truck	6.2L \| V8 \| ECOTEC3 \| 10 Spd Auto With Electronic Precision Shift, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited Denali Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Limited Denali Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited Denali Crew Cab 157" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited Elevation Crew Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Limited Elevation Double Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	99 cm.

2022 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Limited Elevation Crew Cab 147" w/ 3SB Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited Elevation Crew Cab 147" w/ 3VL Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited Elevation Crew Cab 157" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited Elevation Double Cab 147" w/ 3SB Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.
Limited Elevation Double Cab 147" w/ 3VL Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.
Limited Pro Crew Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.

2022 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Limited Pro Double Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	99 cm.
Limited Pro Reg Cab 140" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.
Limited Pro Crew Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited Pro Crew Cab 157" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited Pro Double Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.
Limited Pro Reg Cab 140" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.

2022 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Limited SLE Crew Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Limited SLE Double Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	99 cm.
Limited SLE Crew Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited SLE Crew Cab 157" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited SLE Double Cab 147" Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.
Limited SLT Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.

2022 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Limited SLT Crew Cab 147" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited SLT Crew Cab 157" Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited AT4 Crew Cab 147" Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Limited AT4 Crew Cab 157" Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.

2021 GMC Sierra 1500 Headroom

In the first row, the 2021 GMC Sierra 1500 headroom is 43 inches.

The second row headroom of the 2021 GMC Sierra 1500 is 40 inches.

2021 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab Truck	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Crew Cab Truck	5.3L \| V8 \| ECOTEC3 WITH AVAILABLE ACTIVE FUEL MANAGEMENT \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Crew Cab Truck	2.7L \| Turbo \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Crew Cab Truck	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Crew Cab Truck	5.3L \| V8 \| ECOTEC3 WITH AVAILABLE ACTIVE FUEL MANAGEMENT \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Crew Cab Truck	2.7L \| Turbo \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.

2021 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab AT4 Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Crew Cab AT4 Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 4WD	43 in.	40 in.
Crew Cab AT4 Truck	6.2L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Crew Cab Denali Truck	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Crew Cab Denali Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Crew Cab Denali Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.

2021 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab Denali Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 4WD	43 in.	40 in.
Crew Cab Denali Truck	6.2L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Crew Cab Elevation Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Crew Cab Elevation Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Crew Cab Elevation Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Crew Cab Elevation 3VL Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.

2021 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab Elevation Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Crew Cab Elevation Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Crew Cab Elevation Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Crew Cab SLE Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Crew Cab SLE Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Crew Cab SLE Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.

2021 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab SLE Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Crew Cab SLE Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Crew Cab SLE Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Crew Cab SLT Truck	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Crew Cab SLT Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto, Electronically Controlled \| RWD	43 in.	40 in.
Crew Cab SLT Truck	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.

2021 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab SLT Truck	5.3L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Crew Cab SLT Truck	3.0L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40 in.
Extended Cab Truck	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	39 in.
Extended Cab Truck	5.3L \| V8 \| ECOTEC3 WITH AVAILABLE ACTIVE FUEL MANAGEMENT \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39 in.
Extended Cab Truck	2.7L \| Turbo \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	39 in.
Extended Cab Truck	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.

2021 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Extended Cab Truck	5.3L \| V8 \| ECOTEC3 WITH AVAILABLE ACTIVE FUEL MANAGEMENT \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.
Extended Cab Truck	2.7L \| Turbo \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.
Extended Cab Elevation Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39 in.
Extended Cab Elevation Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| RWD	43 in.	39 in.
Extended Cab Elevation Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39 in.
Extended Cab Elevation 3VL Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.

2021 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Extended Cab Elevation Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.
Extended Cab Elevation Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.
Extended Cab Elevation Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.
Extended Cab SLE Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39 in.
Extended Cab SLE Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| RWD	43 in.	39 in.
Extended Cab SLE Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39 in.

2021 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Extended Cab SLE Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.
Extended Cab SLE Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.
Extended Cab SLE Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39 in.
Regular Cab Truck	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.
Regular Cab Truck	5.3L \| V8 \| ECOTEC3 WITH AVAILABLE ACTIVE FUEL MANAGEMENT \| RWD	43 in.
Regular Cab Truck	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.

2021 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Drivetrain	Front Row Headroom
Regular Cab Truck	5.3L \| V8 \| ECOTEC3 WITH AVAILABLE ACTIVE FUEL MANAGEMENT \| 4WD	43 in.

2021 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab Truck	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Crew Cab Truck	5.3L \| V8 \| ECOTEC3 WITH AVAILABLE ACTIVE FUEL MANAGEMENT \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Crew Cab Truck	2.7L \| Turbo \| 6 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Crew Cab Truck	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Crew Cab Truck	5.3L \| V8 \| ECOTEC3 WITH AVAILABLE ACTIVE FUEL MANAGEMENT \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Crew Cab Truck	2.7L \| Turbo \| 6 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.

2021 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab AT4 Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Crew Cab AT4 Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 4WD	109 cm.	101 cm.
Crew Cab AT4 Truck	6.2L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Crew Cab Denali Truck	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Crew Cab Denali Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Crew Cab Denali Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.

2021 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab Denali Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 4WD	109 cm.	101 cm.
Crew Cab Denali Truck	6.2L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Crew Cab Elevation Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Crew Cab Elevation Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Crew Cab Elevation Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Crew Cab Elevation 3VL Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.

2021 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab Elevation Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Crew Cab Elevation Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Crew Cab Elevation Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Crew Cab SLE Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Crew Cab SLE Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Crew Cab SLE Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.

2021 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab SLE Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Crew Cab SLE Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Crew Cab SLE Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Crew Cab SLT Truck	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Crew Cab SLT Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto, Electronically Controlled \| RWD	109 cm.	101 cm.
Crew Cab SLT Truck	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.

2021 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab SLT Truck	5.3L \| Turbo \| I6 \| DURAMAX \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Crew Cab SLT Truck	3.0L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	101 cm.
Extended Cab Truck	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	109 cm.	99 cm.
Extended Cab Truck	5.3L \| V8 \| ECOTEC3 WITH AVAILABLE ACTIVE FUEL MANAGEMENT \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	99 cm.
Extended Cab Truck	2.7L \| Turbo \| 6 Spd Auto, Electronically Controlled \| RWD	109 cm.	99 cm.
Extended Cab Truck	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.

2021 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Extended Cab Truck	5.3L \| V8 \| ECOTEC3 WITH AVAILABLE ACTIVE FUEL MANAGEMENT \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.
Extended Cab Truck	2.7L \| Turbo \| 6 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.
Extended Cab Elevation Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	99 cm.
Extended Cab Elevation Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| RWD	109 cm.	99 cm.
Extended Cab Elevation Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	99 cm.
Extended Cab Elevation 3VL Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.

2021 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Extended Cab Elevation Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.
Extended Cab Elevation Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.
Extended Cab Elevation Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.
Extended Cab SLE Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	99 cm.
Extended Cab SLE Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| RWD	109 cm.	99 cm.
Extended Cab SLE Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| RWD	109 cm.	99 cm.

2021 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Extended Cab SLE Truck	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.
Extended Cab SLE Truck	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.
Extended Cab SLE Truck	3.0L \| Turbo \| I6 \| DURAMAX \| 8 Spd Auto, Electronically Controlled \| 4WD	109 cm.	99 cm.
Regular Cab Truck	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	109 cm.
Regular Cab Truck	5.3L \| V8 \| ECOTEC3 WITH AVAILABLE ACTIVE FUEL MANAGEMENT \| RWD	109 cm.
Regular Cab Truck	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	109 cm.

2021 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Drivetrain	Front Row Headroom
Regular Cab Truck	5.3L \| V8 \| ECOTEC3 WITH AVAILABLE ACTIVE FUEL MANAGEMENT \| 4WD	109 cm.

2020 GMC Sierra 1500 Headroom

In the first row, the 2020 GMC Sierra 1500 headroom is between 43 inches and 43.1 inches.

2020 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 147" AT4	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab 157" AT4	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Double Cab 147" AT4	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Crew Cab 147"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab 157"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Double Cab 147"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.

2020 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Reg Cab 140"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	43.1 in.
1500 Crew Cab 147"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab 157"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Double Cab 147"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Reg Cab 140"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	43.1 in.
1500 Crew Cab 147" Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.

2020 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 157" Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab 147" Denali	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab 157" Denali	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab 147" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab 157" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Double Cab 147" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.

2020 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 147" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab 157" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Double Cab 147" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Crew Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab 157" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Double Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.

2020 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab 157" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Double Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Crew Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab 157" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Double Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.

2020 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab 157" SLT	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Double Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab AT4	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.

2020 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.

2020 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Extended Cab AT4	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Extended Cab Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.

2020 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Extended Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.
1500 Extended Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	43.1 in.

2020 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	43.1 in.

2020 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 147" AT4	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab 157" AT4	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Double Cab 147" AT4	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Crew Cab 147"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab 157"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Double Cab 147"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.

2020 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Reg Cab 140"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	109.5 cm.
1500 Crew Cab 147"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab 157"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Double Cab 147"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Reg Cab 140"	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	109.5 cm.
1500 Crew Cab 147" Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.

2020 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 157" Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab 147" Denali	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab 157" Denali	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab 147" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab 157" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Double Cab 147" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.

2020 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 147" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab 157" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Double Cab 147" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Crew Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab 157" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Double Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.

2020 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab 157" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Double Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Crew Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab 157" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Double Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.

2020 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab 157" SLT	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Double Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab AT4	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.

2020 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.

2020 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Extended Cab AT4	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Extended Cab Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.

2020 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Extended Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.
1500 Extended Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 \| 10 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	109.5 cm.

2020 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	109.5 cm.

2019 GMC Sierra 1500 Headroom

In the first row, the 2019 GMC Sierra 1500 headroom is between 42.8 inches and 43.1 inches.

2019 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 147" AT4	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab 157" AT4	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Double Cab 147" AT4	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Crew Cab 147"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab 157"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Double Cab 147"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.

2019 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Reg Cab 140"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	43.1 in.
1500 Crew Cab 147"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab 157"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Double Cab 147"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Reg Cab 140"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	43.1 in.
1500 Crew Cab 147" Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.

2019 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 157" Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab 147" Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab 157" Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Double Cab 147" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.
1500 Double Cab 147" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Crew Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.

2019 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 157" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Double Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.
1500 Crew Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab 157" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Double Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Crew Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.

2019 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 157" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Double Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.
1500 Crew Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab 157" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Double Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
Limited 1500 Double Cab	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.

2019 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Limited 1500 Double Cab	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
Limited 1500 Double Cab SLE	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
Limited 1500 Double Cab SLE	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab AT4	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.

2019 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	40.1 in.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	40.1 in.

2019 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Extended Cab AT4	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Extended Cab Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.
1500 Extended Cab Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Extended Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.

2019 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	43 in.	39.9 in.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	43 in.	39.9 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	43.1 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	43.1 in.
Limited 1500 Extended Cab	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.

2019 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Limited 1500 Extended Cab	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
Limited 1500 Extended Cab SLE	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
Limited 1500 Extended Cab SLE	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.

2019 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 147" AT4	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab 157" AT4	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Double Cab 147" AT4	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Crew Cab 147"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab 157"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Double Cab 147"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.

2019 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Reg Cab 140"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	109.5 cm.
1500 Crew Cab 147"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab 157"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Double Cab 147"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Reg Cab 140"	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	109.5 cm.
1500 Crew Cab 147" Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.

2019 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 157" Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab 147" Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab 157" Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Double Cab 147" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.
1500 Double Cab 147" Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Crew Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.

2019 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 157" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Double Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.
1500 Crew Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab 157" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Double Cab 147" SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Crew Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.

2019 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab 157" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Double Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.
1500 Crew Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab 157" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Double Cab 147" SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
Limited 1500 Double Cab	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.

2019 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Limited 1500 Double Cab	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
Limited 1500 Double Cab SLE	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
Limited 1500 Double Cab SLE	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab AT4	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.

2019 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.9 cm.

2019 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Extended Cab AT4	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Extended Cab Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.
1500 Extended Cab Elevation	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Extended Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.

2019 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	2.7L \| Turbo \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| RWD	109.2 cm.	101.3 cm.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 \| 8 Spd Auto, Electronically Controlled \| 4WD	109.2 cm.	101.3 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| RWD	109.5 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 \| 6 Spd Auto, Electronically Controlled \| 4WD	109.5 cm.
Limited 1500 Extended Cab	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.

2019 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Limited 1500 Extended Cab	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
Limited 1500 Extended Cab SLE	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
Limited 1500 Extended Cab SLE	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.

2018 GMC Sierra 1500 Headroom

In the first row, the 2018 GMC Sierra 1500 headroom is between 42.4 inches and 42.8 inches.

2018 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 8 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 8 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.

2018 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab SLT eAssist	5.3L \| Hybrid \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab SLT eAssist	5.3L \| Hybrid \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.

2018 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.4 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.4 in.

2018 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.4 in.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.4 in.

2018 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 8 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 8 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.

2018 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab SLT eAssist	5.3L \| Hybrid \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab SLT eAssist	5.3L \| Hybrid \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.

2018 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	107.7 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	107.7 cm.

2018 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	107.7 cm.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	107.7 cm.

2017 GMC Sierra 1500 Headroom

In the first row, the 2017 GMC Sierra 1500 headroom is between 42.4 inches and 42.8 inches.

2017 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 8 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 8 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.

2017 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab SLT eAssist	5.3L \| Hybrid \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab SLT eAssist	5.3L \| Hybrid \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.

2017 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.4 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.4 in.

2017 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.4 in.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.4 in.

2017 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 8 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 8 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.

2017 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab SLT eAssist	5.3L \| Hybrid \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab SLT eAssist	5.3L \| Hybrid \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.

2017 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	107.7 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	107.7 cm.

2017 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	107.7 cm.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	107.7 cm.

2016 GMC Sierra 1500 Headroom

In the first row, the 2016 GMC Sierra 1500 headroom is between 42.4 inches and 42.8 inches.

2016 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 8 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 8 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.

2016 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab SLT eAssist	5.3L \| Hybrid \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.

2016 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.4 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.4 in.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.4 in.

2016 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.4 in.

2016 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 8 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 8 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.

2016 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab SLT eAssist	5.3L \| Hybrid \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.

2016 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	107.7 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	107.7 cm.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	107.7 cm.

2016 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	107.7 cm.

2015 GMC Sierra 1500 Headroom

In the first row, the 2015 GMC Sierra 1500 headroom is between 42.4 inches and 42.8 inches.

2015 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.

2015 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.

2015 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.4 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.4 in.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.4 in.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.4 in.

2015 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.

2015 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.

2015 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT DIRECT INJECTION \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	107.7 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	107.7 cm.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	107.7 cm.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	107.7 cm.

2014 GMC Sierra 1500 Headroom

In the first row, the 2014 GMC Sierra 1500 headroom is between 42.4 inches and 42.8 inches.

2014 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.

2014 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	40.5 in.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	40.5 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.

2014 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.8 in.	38.7 in.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.8 in.	38.7 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.4 in.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.4 in.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	42.4 in.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	42.4 in.

2014 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab Denali	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.

2014 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	102.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	102.9 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.

2014 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	108.7 cm.	98.3 cm.
1500 Extended Cab SLT	5.3L \| V8 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	108.7 cm.	98.3 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	107.7 cm.
1500 Regular Cab	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	107.7 cm.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| RWD	107.7 cm.
1500 Regular Cab SLE	4.3L \| V6 \| ECOTEC3 WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto, Electronically Controlled \| 4WD	107.7 cm.

2013 GMC Sierra 1500 Headroom

In the first row, the 2013 GMC Sierra 1500 headroom is between 41.2 inches and 41.5 inches.

2013 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85- COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85- COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| AWD	41.2 in.	40.5 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.

2013 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab XFE	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	41.2 in.	40.5 in.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.

2013 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	41.2 in.	39.2 in.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	41.2 in.	39.2 in.
1500 Extended Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.

2013 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC VARIABLE VALVE TIMING SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| RWD	41.5 in.	40.6 in.

2013 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC VARIABLE VALVE TIMING SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| 4WD	41.5 in.	40.6 in.

2013 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85- COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85- COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| AWD	104.6 cm.	102.9 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.

2013 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab XFE	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	104.6 cm.	102.9 cm.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.

2013 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	104.6 cm.	99.6 cm.
1500 Extended Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.

2013 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC VARIABLE VALVE TIMING SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| RWD	105.4 cm.	103.1 cm.

2013 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC VARIABLE VALVE TIMING SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| 4WD	105.4 cm.	103.1 cm.

2012 GMC Sierra 1500 Headroom

In the first row, the 2012 GMC Sierra 1500 headroom is between 41.2 inches and 41.5 inches.

2012 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85- COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.2 in.	40.5 in.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85- COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| AWD	41.2 in.	40.5 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.

2012 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab XFE	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	41.2 in.	40.5 in.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.

2012 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	41.2 in.	39.2 in.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	41.2 in.	39.2 in.
1500 Extended Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.

2012 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC VARIABLE VALVE TIMING SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| RWD	41.5 in.	40.6 in.

2012 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC VARIABLE VALVE TIMING SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| 4WD	41.5 in.	40.6 in.

2012 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85- COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85- COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| AWD	104.6 cm.	102.9 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.

2012 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab XFE	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	104.6 cm.	102.9 cm.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.

2012 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	104.6 cm.	99.6 cm.
1500 Extended Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.

2012 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC VARIABLE VALVE TIMING SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| RWD	105.4 cm.	103.1 cm.

2012 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC VARIABLE VALVE TIMING SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| 4WD	105.4 cm.	103.1 cm.

2011 GMC Sierra 1500 Headroom

In the first row, the 2011 GMC Sierra 1500 headroom is between 41.2 inches and 41.5 inches.

2011 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85- COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.2 in.	40.5 in.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85- COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| AWD	41.2 in.	40.5 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.

2011 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab XFE	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	41.2 in.	40.5 in.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.

2011 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	41.2 in.	39.2 in.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	41.2 in.	39.2 in.
1500 Extended Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.

2011 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC VARIABLE VALVE TIMING SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| RWD	41.5 in.	40.6 in.

2011 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC VARIABLE VALVE TIMING SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| 4WD	41.5 in.	40.6 in.

2011 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85- COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85- COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| AWD	104.6 cm.	102.9 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.

2011 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab XFE	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	104.6 cm.	102.9 cm.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.

2011 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	104.6 cm.	99.6 cm.
1500 Extended Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.

2011 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC VARIABLE VALVE TIMING SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| RWD	105.4 cm.	103.1 cm.

2011 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC VARIABLE VALVE TIMING SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| 4WD	105.4 cm.	103.1 cm.

2010 GMC Sierra 1500 Headroom

In the first row, the 2010 GMC Sierra 1500 headroom is between 41.2 inches and 41.5 inches.

2010 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.5 in.	40.6 in.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| AWD	41.5 in.	40.6 in.

2010 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	41.2 in.	40.5 in.

2010 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab XFE	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	41.2 in.	40.5 in.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	41.2 in.	39.2 in.

2010 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	41.2 in.	39.2 in.
1500 Extended Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.
1500 Extended Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| RWD	41.5 in.	40.6 in.

2010 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| 4WD	41.5 in.	40.6 in.

2010 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	105.4 cm.	103.1 cm.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| AWD	105.4 cm.	103.1 cm.

2010 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	104.6 cm.	102.9 cm.

2010 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab XFE	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	104.6 cm.	102.9 cm.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| RWD	104.6 cm.	99.6 cm.

2010 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT \| 6 Spd Auto \| 4WD	104.6 cm.	99.6 cm.
1500 Extended Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab Work Truck	4.8L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| RWD	105.4 cm.	103.1 cm.

2010 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC SFI HYBRIDLIVC \| 2-Mode Strong Hybrid, Auto, Electronic. \| 4WD	105.4 cm.	103.1 cm.

2009 GMC Sierra 1500 Headroom

In the first row, the 2009 GMC Sierra 1500 headroom is between 41.2 inches and 41.5 inches.

2009 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC SFI E85-COMPATIBLE FLEXFUEL CAPABLE OF RUNNING ON UNLEADED OR UP TO 85% ETHANOL (403 HP [300.5 KW] @ 5700 RPM 417LB-FT OF TORQUE [565.4 N-M] @ 4300 RPM) \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.5 in.	40.6 in.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC SFI E85-COMPATIBLE FLEXFUEL CAPABLE OF RUNNING ON UNLEADED OR UP TO 85% ETHANOL (403 HP [300.5 KW] @ 5700 RPM 417LB-FT OF TORQUE [565.4 N-M] @ 4300 RPM) \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| AWD	41.5 in.	40.6 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.

2009 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 NM] @ 4400 RPM) IRON BLOCK \| 6 Spd Auto \| RWD	41.2 in.	40.5 in.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 NM] @ 4400 RPM) ALUMINUM BLOCK \| 6 Spd Auto \| 4WD	41.2 in.	40.5 in.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	40.5 in.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	40.5 in.

2009 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab XFE	5.3L \| V8 \| VORTEC SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT CAPABLE OF RUNNING ON UNLEADED OR UP TO 85% ETHANOL (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) ALUMINUM BLOCK \| 6 Spd Auto \| RWD	41.2 in.	40.5 in.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 NM] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 NM] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.

2009 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab Work Truck	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| RWD	41.2 in.	39.2 in.
1500 Extended Cab Work Truck	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.2 in.	39.2 in.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC SFILIVC \| 4 Spd Auto \| RWD	41.5 in.	40.6 in.

2009 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC SFILIVC \| 4 Spd Auto \| 4WD	41.5 in.	40.6 in.

2009 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC SFI E85-COMPATIBLE FLEXFUEL CAPABLE OF RUNNING ON UNLEADED OR UP TO 85% ETHANOL (403 HP [300.5 KW] @ 5700 RPM 417LB-FT OF TORQUE [565.4 N-M] @ 4300 RPM) \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	105.4 cm.	103.1 cm.
1500 Crew Cab Denali	6.2L \| V8 \| VORTEC SFI E85-COMPATIBLE FLEXFUEL CAPABLE OF RUNNING ON UNLEADED OR UP TO 85% ETHANOL (403 HP [300.5 KW] @ 5700 RPM 417LB-FT OF TORQUE [565.4 N-M] @ 4300 RPM) \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| AWD	105.4 cm.	103.1 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.

2009 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 NM] @ 4400 RPM) IRON BLOCK \| 6 Spd Auto \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 NM] @ 4400 RPM) ALUMINUM BLOCK \| 6 Spd Auto \| 4WD	104.6 cm.	102.9 cm.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	102.9 cm.
1500 Crew Cab Work Truck	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	102.9 cm.

2009 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab XFE	5.3L \| V8 \| VORTEC SFI FLEXFUEL WITH ACTIVE FUEL MANAGEMENT CAPABLE OF RUNNING ON UNLEADED OR UP TO 85% ETHANOL (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) ALUMINUM BLOCK \| 6 Spd Auto \| RWD	104.6 cm.	102.9 cm.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 NM] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 NM] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.

2009 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab Work Truck	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| RWD	104.6 cm.	99.6 cm.
1500 Extended Cab Work Truck	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	104.6 cm.	99.6 cm.
1500 Regular Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4600 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.
1500 Regular Cab Work Truck	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC SFILIVC \| 4 Spd Auto \| RWD	105.4 cm.	103.1 cm.

2009 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab	6.0L \| Hybrid \| V8 \| VORTEC SFILIVC \| 4 Spd Auto \| 4WD	105.4 cm.	103.1 cm.

2008 GMC Sierra 1500 Headroom

In the first row, the 2008 GMC Sierra 1500 headroom is 41.5 inches.

The second row headroom of the 2008 GMC Sierra 1500 is 39.3 inches.

2008 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.	39.3 in.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.	39.3 in.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.	39.3 in.
1500 Regular Cab SLE	4.8L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.	40.6 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.	40.6 in.

2008 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.	40.6 in.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.	40.6 in.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.	40.6 in.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.	40.6 in.
1500 Extended Cab SLE	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.	39.3 in.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.	39.3 in.

2008 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.	39.3 in.
1500 Regular Cab SLE	4.8L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.
Crew Cab Denali	6.2L \| V8 \| VORTEC HIGH-OUTPUT VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.5 in.	40.6 in.
Crew Cab Denali	6.2L \| V8 \| VORTEC HIGH-OUTPUT VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| AWD	41.5 in.	40.6 in.

2008 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.	99.8 cm.
1500 Extended Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.	99.8 cm.
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.	99.8 cm.
1500 Regular Cab SLE	4.8L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.	103.1 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.	103.1 cm.

2008 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.	103.1 cm.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 N-M] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.	103.1 cm.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.	103.1 cm.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.	103.1 cm.
1500 Extended Cab SLE	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.	99.8 cm.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.	99.8 cm.

2008 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.	99.8 cm.
1500 Regular Cab SLE	4.8L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.
Crew Cab Denali	6.2L \| V8 \| VORTEC HIGH-OUTPUT VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	105.4 cm.	103.1 cm.
Crew Cab Denali	6.2L \| V8 \| VORTEC HIGH-OUTPUT VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| AWD	105.4 cm.	103.1 cm.

2007 GMC Sierra 1500 Headroom

In the first row, the 2007 GMC Sierra 1500 headroom is between 40.7 inches and 41.5 inches.

The second row headroom of the 2007 GMC Sierra 1500 is between 40.2 inches and 39.3 inches.

2007 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 NM] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.	39.3 in.
1500 Regular Cab SLE	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 NM] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.	40.6 in.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 NM] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.	40.6 in.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 NM] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.	40.6 in.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 NM] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.	40.6 in.

2007 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.	40.6 in.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) ALUMINUM BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.	40.6 in.
1500 Extended Cab SLE	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.	39.3 in.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.	39.3 in.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	41.5 in.	39.3 in.
1500 Regular Cab SLE	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| RWD	41.5 in.

2007 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Classic 1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	40.7 in.	40.2 in.
Classic 1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	40.7 in.	40.2 in.
Classic 1500 Crew Cab SLE	5.3L \| V8 \| VORTEC SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	40.7 in.	40.2 in.
Classic 1500 Crew Cab SLE	5.3L \| V8 \| VORTEC SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	40.7 in.	40.2 in.
Classic 1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	40.7 in.	40.2 in.
Classic 1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	40.7 in.	40.2 in.

2007 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Classic 1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	41 in.	38.4 in.
Classic 1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	41 in.	38.4 in.
Classic 1500 Extended Cab SLE	5.3L \| Hybrid \| V8 \| VORTEC SFI HYBRID \| 4 Spd Auto, Hybrid, Electronically Controlled \| RWD	41 in.	38.4 in.
Classic 1500 Extended Cab SLE	5.3L \| Hybrid \| V8 \| VORTEC SFI HYBRID \| 4 Spd Auto, Hybrid, Electronically Controlled \| 4WD	41 in.	38.4 in.
HD Classic 1500 Crew Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.1 in.	39.9 in.
HD Classic 1500 Crew Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.1 in.	39.9 in.

2007 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
HD Classic 1500 Crew Cab SLT	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.1 in.	39.9 in.
HD Classic 1500 Crew Cab SLT	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.1 in.	39.9 in.
Crew Cab Denali	6.2L \| V8 \| VORTEC HIGH-OUTPUT VARIABLE VALVE TIMING SFI (403 HP [300.5 KW] @ 5700 RPM 417LB-FT OF TORQUE [565.4 N-M] @ 4300 RPM) \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.5 in.	40.6 in.
Crew Cab Denali	6.2L \| V8 \| VORTEC HIGH-OUTPUT VARIABLE VALVE TIMING SFI (403 HP [300.5 KW] @ 5700 RPM 417LB-FT OF TORQUE [565.4 N-M] @ 4300 RPM) \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| AWD	41.5 in.	40.6 in.
Crew Cab Denali	6.0L \| V8 \| VORTEC MFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode And External Oil Cooler \| AWD	40.7 in.	40.2 in.

2007 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 NM] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.	99.8 cm.
1500 Regular Cab SLE	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 NM] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.	103.1 cm.
1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 NM] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.	103.1 cm.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 NM] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.	103.1 cm.
1500 Crew Cab SLE	4.8L \| V8 \| VORTEC SFI (295 HP [220.0 KW] @ 5600 RPM 305LB-FT TORQUE [411.8 NM] @ 4800 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.	103.1 cm.

2007 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.	103.1 cm.
1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) ALUMINUM BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.	103.1 cm.
1500 Extended Cab SLE	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.	99.8 cm.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.	99.8 cm.
1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI WITH ACTIVE FUEL MANAGEMENT (315 HP [234.9 KW] @ 5200 RPM 338LB-FT OF TORQUE [456.3 N-M] @ 4400 RPM) IRON BLOCK \| 4 Spd Auto, Electronically Controlled \| 4WD	105.4 cm.	99.8 cm.
1500 Regular Cab SLE	4.3L \| V6 \| VORTEC MFI (195 HP [145.4 KW] @ 4600 RPM 260LB-FT OF TORQUE [351.0 N-M] @ 2800 RPM) \| 4 Spd Auto, Electronically Controlled \| RWD	105.4 cm.

2007 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Classic 1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	103.4 cm.	102.1 cm.
Classic 1500 Crew Cab SL	4.8L \| V8 \| VORTEC SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	103.4 cm.	102.1 cm.
Classic 1500 Crew Cab SLE	5.3L \| V8 \| VORTEC SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	103.4 cm.	102.1 cm.
Classic 1500 Crew Cab SLE	5.3L \| V8 \| VORTEC SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	103.4 cm.	102.1 cm.
Classic 1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	103.4 cm.	102.1 cm.
Classic 1500 Crew Cab SLT	5.3L \| V8 \| VORTEC SFI FLEXFUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	103.4 cm.	102.1 cm.

2007 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Classic 1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
Classic 1500 Extended Cab SLT	5.3L \| V8 \| VORTEC SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	104.1 cm.	97.5 cm.
Classic 1500 Extended Cab SLE	5.3L \| Hybrid \| V8 \| VORTEC SFI HYBRID \| 4 Spd Auto, Hybrid, Electronically Controlled \| RWD	104.1 cm.	97.5 cm.
Classic 1500 Extended Cab SLE	5.3L \| Hybrid \| V8 \| VORTEC SFI HYBRID \| 4 Spd Auto, Hybrid, Electronically Controlled \| 4WD	104.1 cm.	97.5 cm.
HD Classic 1500 Crew Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.4 cm.	101.3 cm.
HD Classic 1500 Crew Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.4 cm.	101.3 cm.

2007 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
HD Classic 1500 Crew Cab SLT	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.4 cm.	101.3 cm.
HD Classic 1500 Crew Cab SLT	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.4 cm.	101.3 cm.
Crew Cab Denali	6.2L \| V8 \| VORTEC HIGH-OUTPUT VARIABLE VALVE TIMING SFI (403 HP [300.5 KW] @ 5700 RPM 417LB-FT OF TORQUE [565.4 N-M] @ 4300 RPM) \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	105.4 cm.	103.1 cm.
Crew Cab Denali	6.2L \| V8 \| VORTEC HIGH-OUTPUT VARIABLE VALVE TIMING SFI (403 HP [300.5 KW] @ 5700 RPM 417LB-FT OF TORQUE [565.4 N-M] @ 4300 RPM) \| 6 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| AWD	105.4 cm.	103.1 cm.
Crew Cab Denali	6.0L \| V8 \| VORTEC MFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode And External Oil Cooler \| AWD	103.4 cm.	102.1 cm.

2006 GMC Sierra 1500 Headroom

In the first row, the 2006 GMC Sierra 1500 headroom is between 40.7 inches and 41.1 inches.

The second row headroom of the 2006 GMC Sierra 1500 is between 40.2 inches and 39.9 inches.

2006 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SL	V6 \| VORTEC 4300 MFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41 in.	38.4 in.
1500 Extended Cab SL	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41 in.	38.4 in.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	41 in.
1500 Extended Cab SLE	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	41 in.	38.4 in.
1500 Regular Cab SL	V6 \| VORTEC 4300 MFI \| 5 Spd Manual With OD \| RWD	41 in.
1500 Regular Cab SL	V6 \| VORTEC 4300 MFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41 in.

2006 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	41 in.
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	41 in.
1500 Crew Cab SL	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	40.7 in.	40.2 in.
1500 Crew Cab SL	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	40.7 in.	40.2 in.
1500 Crew Cab SLE	V8 \| VORTEC 5300 SFI FLEXIBLE FUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	40.7 in.	40.2 in.
1500 Crew Cab SLE	V8 \| VORTEC 5300 SFI FLEXIBLE FUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	40.7 in.	40.2 in.

2006 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	V8 \| VORTEC 5300 SFI FLEXIBLE FUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	40.7 in.	40.2 in.
1500 Crew Cab SLT	V8 \| VORTEC 5300 SFI FLEXIBLE FUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	40.7 in.	40.2 in.
1500 Extended Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	41 in.	38.4 in.
1500 Extended Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	41 in.	38.4 in.
1500 Extended Cab SLE	Hybrid \| V8 \| VORTEC 5300 SFI HYBRID \| 4 Spd Auto, Electronically Controlled Hybrid \| RWD	41 in.	38.4 in.
1500 Extended Cab SLE	Hybrid \| V8 \| VORTEC 5300 SFI HYBRID \| 4 Spd Auto, Electronically Controlled Hybrid \| 4WD	41 in.	38.4 in.

2006 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
HD 1500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.1 in.	39.9 in.
HD 1500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.1 in.	39.9 in.
HD 1500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.1 in.	39.9 in.
HD 1500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.1 in.	39.9 in.
Crew Cab Denali	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode And External Oil Cooler \| AWD	40.7 in.	40.2 in.

2006 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SL	V6 \| VORTEC 4300 MFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SL	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	104.1 cm.
1500 Extended Cab SLE	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	104.1 cm.	97.5 cm.
1500 Regular Cab SL	V6 \| VORTEC 4300 MFI \| 5 Spd Manual With OD \| RWD	104.1 cm.
1500 Regular Cab SL	V6 \| VORTEC 4300 MFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.1 cm.

2006 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	104.1 cm.
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	104.1 cm.
1500 Crew Cab SL	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	103.4 cm.	102.1 cm.
1500 Crew Cab SL	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	103.4 cm.	102.1 cm.
1500 Crew Cab SLE	V8 \| VORTEC 5300 SFI FLEXIBLE FUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	103.4 cm.	102.1 cm.
1500 Crew Cab SLE	V8 \| VORTEC 5300 SFI FLEXIBLE FUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	103.4 cm.	102.1 cm.

2006 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Crew Cab SLT	V8 \| VORTEC 5300 SFI FLEXIBLE FUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	103.4 cm.	102.1 cm.
1500 Crew Cab SLT	V8 \| VORTEC 5300 SFI FLEXIBLE FUEL \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	103.4 cm.	102.1 cm.
1500 Extended Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	Hybrid \| V8 \| VORTEC 5300 SFI HYBRID \| 4 Spd Auto, Electronically Controlled Hybrid \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	Hybrid \| V8 \| VORTEC 5300 SFI HYBRID \| 4 Spd Auto, Electronically Controlled Hybrid \| 4WD	104.1 cm.	97.5 cm.

2006 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
HD 1500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.4 cm.	101.3 cm.
HD 1500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.4 cm.	101.3 cm.
HD 1500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.4 cm.	101.3 cm.
HD 1500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.4 cm.	101.3 cm.
Crew Cab Denali	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode And External Oil Cooler \| AWD	103.4 cm.	102.1 cm.

2005 GMC Sierra 1500 Headroom

In the first row, the 2005 GMC Sierra 1500 headroom is between 40.7 inches and 41.1 inches.

The second row headroom of the 2005 GMC Sierra 1500 is between 40.2 inches and 39.9 inches.

2005 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41 in.	38.4 in.
1500 Extended Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41 in.	38.4 in.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	41 in.	38.4 in.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	41 in.	38.4 in.
1500 Regular Cab	V6 \| VORTEC 4300 MFI \| 5 Spd Manual With OD \| RWD	41 in.
1500 Regular Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41 in.

2005 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	41 in.
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	41 in.
1500 Crew Cab SLE	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	41 in.	40.2 in.
1500 Crew Cab SLE	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	41 in.	40.2 in.
1500 Crew Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	41 in.	40.2 in.
1500 Crew Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	41 in.	40.2 in.

2005 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	41 in.	38.4 in.
1500 Extended Cab SLT	V8 \| VORTEC 5300 SFI ALUMINUM BLOCK WITH STEEL CYLINDER SLEEVES \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	41 in.	38.4 in.
1500 Extended Cab SLE	Hybrid \| V8 \| VORTEC 5300 SFI HYBRID \| 4 Spd Auto, Electronically Controlled Hybrid \| RWD	41 in.	38.4 in.
1500 Extended Cab SLE	Hybrid \| V8 \| VORTEC 5300 SFI HYBRID \| 4 Spd Auto, Electronically Controlled Hybrid \| 4WD	41 in.	38.4 in.
HD 1500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.1 in.	39.9 in.
HD 1500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.1 in.	39.9 in.

2005 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
HD 1500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.1 in.	39.9 in.
HD 1500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.1 in.	39.9 in.
Crew Cab Denali	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode And External Oil Cooler \| AWD	40.7 in.	40.2 in.

2005 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	104.1 cm.	97.5 cm.
1500 Regular Cab	V6 \| VORTEC 4300 MFI \| 5 Spd Manual With OD \| RWD	104.1 cm.
1500 Regular Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.1 cm.

2005 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	104.1 cm.
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	104.1 cm.
1500 Crew Cab SLE	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	104.1 cm.	102.1 cm.
1500 Crew Cab SLE	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	104.1 cm.	102.1 cm.
1500 Crew Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	104.1 cm.	102.1 cm.
1500 Crew Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	104.1 cm.	102.1 cm.

2005 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SLT	V8 \| VORTEC 5300 SFI ALUMINUM BLOCK WITH STEEL CYLINDER SLEEVES \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	Hybrid \| V8 \| VORTEC 5300 SFI HYBRID \| 4 Spd Auto, Electronically Controlled Hybrid \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	Hybrid \| V8 \| VORTEC 5300 SFI HYBRID \| 4 Spd Auto, Electronically Controlled Hybrid \| 4WD	104.1 cm.	97.5 cm.
HD 1500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.4 cm.	101.3 cm.
HD 1500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.4 cm.	101.3 cm.

2005 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
HD 1500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.4 cm.	101.3 cm.
HD 1500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.4 cm.	101.3 cm.
Crew Cab Denali	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode And External Oil Cooler \| AWD	103.4 cm.	102.1 cm.

2004 GMC Sierra 1500 Headroom

In the first row, the 2004 GMC Sierra 1500 headroom is between 40.7 inches and 41 inches.

The second row headroom of the 2004 GMC Sierra 1500 is between 40.2 inches and 38.4 inches.

2004 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41 in.	38.4 in.
1500 Extended Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41 in.	38.4 in.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	41 in.	38.4 in.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	41 in.	38.4 in.
1500 Regular Cab	V6 \| VORTEC 4300 MFI \| 5 Spd Manual With OD \| RWD	41 in.
1500 Regular Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41 in.

2004 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	41 in.
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	41 in.
1500 Extended Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	41 in.	38.4 in.
1500 Extended Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	41 in.	38.4 in.
Crew Cab 1500 SLE	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| RWD	40.7 in.	40.2 in.
Crew Cab 1500 SLE	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	40.7 in.	40.2 in.

2004 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 1500 SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| RWD	40.7 in.	40.2 in.
Crew Cab 1500 SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	40.7 in.	40.2 in.
Extended Cab Denali	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode And External Oil Cooler \| AWD	41 in.	38.4 in.

2004 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	104.1 cm.	97.5 cm.
1500 Regular Cab	V6 \| VORTEC 4300 MFI \| 5 Spd Manual With OD \| RWD	104.1 cm.
1500 Regular Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.1 cm.

2004 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	104.1 cm.
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	104.1 cm.
1500 Extended Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled W/OD And Tow/Haul Mode \| 4WD	104.1 cm.	97.5 cm.
Crew Cab 1500 SLE	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| RWD	103.4 cm.	102.1 cm.
Crew Cab 1500 SLE	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	103.4 cm.	102.1 cm.

2004 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
Crew Cab 1500 SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| RWD	103.4 cm.	102.1 cm.
Crew Cab 1500 SLT	V8 \| VORTEC 5300 SFI \| 4 Spd Auto, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	103.4 cm.	102.1 cm.
Extended Cab Denali	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode And External Oil Cooler \| AWD	104.1 cm.	97.5 cm.

2003 GMC Sierra 1500 Headroom

In the first row, the 2003 GMC Sierra 1500 headroom is between 41 inches and 41.1 inches.

The second row headroom of the 2003 GMC Sierra 1500 is between 38.4 inches and 39.9 inches.

2003 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab	V6 \| VORTEC 4300 MFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| RWD	41 in.	38.4 in.
1500 Extended Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| RWD	41 in.	38.4 in.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| RWD	41 in.	38.4 in.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| 4WD	41 in.	38.4 in.
1500 Extended Cab SLT	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| RWD	41 in.	38.4 in.
1500 Extended Cab SLT	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| 4WD	41 in.	38.4 in.

2003 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Regular Cab	V6 \| VORTEC 4300 MFI \| 5 Spd Manual W/OD \| RWD	41 in.
1500 Regular Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| 4WD	41 in.
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 5 Spd Manual W/OD \| RWD	41 in.
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| 4WD	41 in.
HD 1500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled W/OD, Tow/Haul Mode & Cooling, External Oil Cooler \| RWD	41.1 in.	39.9 in.
HD 1500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled W/OD, Tow/Haul Mode & Cooling, External Oil Cooler \| 4WD	41.1 in.	39.9 in.

2003 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
HD 1500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled W/OD, Tow/Haul Mode & Cooling, External Oil Cooler \| RWD	41.1 in.	39.9 in.
HD 1500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled W/OD, Tow/Haul Mode & Cooling, External Oil Cooler \| 4WD	41.1 in.	39.9 in.
Extended Cab Denali	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled W/OD, Tow/Haul Mode & External Oil Cooler \| AWD	41 in.	38.4 in.

2003 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab	V6 \| VORTEC 4300 MFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| 4WD	104.1 cm.	97.5 cm.
1500 Extended Cab SLT	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SLT	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| 4WD	104.1 cm.	97.5 cm.

2003 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Regular Cab	V6 \| VORTEC 4300 MFI \| 5 Spd Manual W/OD \| RWD	104.1 cm.
1500 Regular Cab	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| 4WD	104.1 cm.
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 5 Spd Manual W/OD \| RWD	104.1 cm.
1500 Regular Cab SLE	V8 \| VORTEC 4800 SFI \| 4 Spd Auto, Electronically Controlled W/OD & Tow/Haul Mode \| 4WD	104.1 cm.
HD 1500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled W/OD, Tow/Haul Mode & Cooling, External Oil Cooler \| RWD	104.4 cm.	101.3 cm.
HD 1500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled W/OD, Tow/Haul Mode & Cooling, External Oil Cooler \| 4WD	104.4 cm.	101.3 cm.

2003 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
HD 1500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled W/OD, Tow/Haul Mode & Cooling, External Oil Cooler \| RWD	104.4 cm.	101.3 cm.
HD 1500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled W/OD, Tow/Haul Mode & Cooling, External Oil Cooler \| 4WD	104.4 cm.	101.3 cm.
Extended Cab Denali	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled W/OD, Tow/Haul Mode & External Oil Cooler \| AWD	104.1 cm.	97.5 cm.

2002 GMC Sierra 1500 Headroom

In the first row, the 2002 GMC Sierra 1500 headroom is between 41 inches and 41.1 inches.

The second row headroom of the 2002 GMC Sierra 1500 is between 38.4 inches and 39.9 inches.

2002 GMC Sierra 1500 Headroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab Denali	6.0L \| V8 \| (364) SFI (VORTEC) \| Hd 4 Spd Auto w/OD \| AWD	41 in.	38.4 in.
1500 Extended Cab SL	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	41 in.	38.4 in.
1500 Extended Cab SL	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41 in.	38.4 in.
1500 Extended Cab SLE	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	41 in.	38.4 in.
1500 Extended Cab SLE	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41 in.	38.4 in.
1500 Extended Cab SLT	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	41 in.	38.4 in.

2002 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLT	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41 in.	38.4 in.
1500 Regular Cab SL	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41 in.
1500 Regular Cab SLE	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	41 in.
1500 Regular Cab SLE	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41 in.
1500 Regular Cab SL	4.3L \| V6 \| (262) SFI (VORTEC) \| 5 Spd Manual w/OD \| RWD	41 in.
HD 1500 Crew Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	41.1 in.	39.9 in.

2002 GMC Sierra 1500 Headroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
HD 1500 Crew Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41.1 in.	39.9 in.
HD 1500 Crew Cab SLT	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	41.1 in.	39.9 in.
HD 1500 Crew Cab SLT	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41.1 in.	39.9 in.

2002 GMC Sierra 1500 Headroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab Denali	6.0L \| V8 \| (364) SFI (VORTEC) \| Hd 4 Spd Auto w/OD \| AWD	104.1 cm.	97.5 cm.
1500 Extended Cab SL	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SL	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	104.1 cm.	97.5 cm.
1500 Extended Cab SLE	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.1 cm.	97.5 cm.
1500 Extended Cab SLT	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	104.1 cm.	97.5 cm.

2002 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
1500 Extended Cab SLT	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.1 cm.	97.5 cm.
1500 Regular Cab SL	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.1 cm.
1500 Regular Cab SLE	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	104.1 cm.
1500 Regular Cab SLE	4.8L \| V8 \| (293) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.1 cm.
1500 Regular Cab SL	4.3L \| V6 \| (262) SFI (VORTEC) \| 5 Spd Manual w/OD \| RWD	104.1 cm.
HD 1500 Crew Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	104.4 cm.	101.3 cm.

2002 GMC Sierra 1500 Headroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	Front Row Headroom	Second Row Headroom
HD 1500 Crew Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.4 cm.	101.3 cm.
HD 1500 Crew Cab SLT	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	104.4 cm.	101.3 cm.
HD 1500 Crew Cab SLT	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.4 cm.	101.3 cm.