GMC Sierra 3500 Legroom (2002 - 2024)

Researched By The AutoPadre Research Team

Last Updated 2024-01-29

In the first row, the GMC Sierra 3500 legroom ranges from a minimum of 41.3 inches to a maximum of 45.3 inches.

The GMC Sierra 3500 has a minimum of 33.7 inches and a maximum of 43.4 inches of second row legroom.

Check out the Legroom specifications for other makes and models.

2024 GMC Sierra 3500 Legroom

In the first row, the 2024 GMC Sierra 3500 legroom is 44.53 inches.

The second row legroom of the 2024 GMC Sierra 3500 is 43.4 inches.

For legroom data by trim level, see the table below.

2024 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Denali Ultimate Crew Cab 172" Diesel	6.6L \| Turbo \| V8 \| DURAMAX, B20- COMPATIBLE \| Allison 10 Spd Auto \| 4WD	44.53 in.	43.4 in.
HD Denali Ultimate Crew Cab 159" Diesel	6.6L \| Turbo \| V8 \| DURAMAX, B20- COMPATIBLE \| Allison 10 Spd Auto \| 4WD	44.53 in.	43.4 in.
HD Denali Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.	43.4 in.
HD Denali Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.	43.4 in.
HD AT4 Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.	43.4 in.
HD AT4 Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.	43.4 in.

2024 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD SLT Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.	43.4 in.
HD SLT Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.	43.4 in.
HD SLT Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	44.53 in.	43.4 in.
HD SLT Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	44.53 in.	43.4 in.
HD SLE Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.
HD SLE Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.	35.24 in.

2024 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD SLE Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.	43.4 in.
HD SLE Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.	43.4 in.
HD SLE Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	44.53 in.
HD SLE Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	44.53 in.	35.24 in.
HD SLE Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	44.53 in.	43.4 in.
HD SLE Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	44.53 in.	43.4 in.

2024 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Pro Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.
HD Pro Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.	35.24 in.
HD Pro Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.	43.4 in.
HD Pro Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	44.53 in.	43.4 in.
HD Pro Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	44.53 in.
HD Pro Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	44.53 in.	35.24 in.

2024 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Pro Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	44.53 in.	43.4 in.
HD Pro Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	44.53 in.	43.4 in.

2024 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Denali Ultimate Crew Cab 172" Diesel	6.6L \| Turbo \| V8 \| DURAMAX, B20- COMPATIBLE \| Allison 10 Spd Auto \| 4WD	113 cm	110 cm
HD Denali Ultimate Crew Cab 159" Diesel	6.6L \| Turbo \| V8 \| DURAMAX, B20- COMPATIBLE \| Allison 10 Spd Auto \| 4WD	113 cm	110 cm
HD Denali Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm	110 cm
HD Denali Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm	110 cm
HD AT4 Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm	110 cm
HD AT4 Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm	110 cm

2024 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD SLT Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm	110 cm
HD SLT Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm	110 cm
HD SLT Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	113 cm	110 cm
HD SLT Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	113 cm	110 cm
HD SLE Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm
HD SLE Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm	90 cm

2024 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD SLE Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm	110 cm
HD SLE Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm	110 cm
HD SLE Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	113 cm
HD SLE Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	113 cm	90 cm
HD SLE Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	113 cm	110 cm
HD SLE Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	113 cm	110 cm

2024 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Pro Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm
HD Pro Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm	90 cm
HD Pro Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm	110 cm
HD Pro Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| 4WD	113 cm	110 cm
HD Pro Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	113 cm
HD Pro Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	113 cm	90 cm

2024 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Pro Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	113 cm	110 cm
HD Pro Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING, OLINE \| Allison 10 Spd Auto \| RWD	113 cm	110 cm

2023 GMC Sierra 3500 Legroom

In the first row, the 2023 GMC Sierra 3500 legroom is 44 inches.

The second row legroom of the 2023 GMC Sierra 3500 is 43 inches.

For legroom data by trim level, see the table below.

2023 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Denali Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD Denali Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD AT4 Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD AT4 Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD SLT Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD SLT Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.

2023 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD SLT Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.
HD SLT Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.
HD SLE Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.
HD SLE Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	35 in.
HD SLE Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD SLE Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.

2023 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD SLE Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.
HD SLE Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	35 in.
HD SLE Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.
HD SLE Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.
HD Pro Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.
HD Pro Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	35 in.

2023 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Pro Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD Pro Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD Pro Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.
HD Pro Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	35 in.
HD Pro Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.
HD Pro Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.

2023 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Denali Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD Denali Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD AT4 Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD AT4 Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD SLT Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD SLT Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm

2023 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD SLT Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm
HD SLT Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm
HD SLE Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm
HD SLE Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	88 cm
HD SLE Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD SLE Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm

2023 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD SLE Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm
HD SLE Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	88 cm
HD SLE Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm
HD SLE Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm
HD Pro Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm
HD Pro Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	88 cm

2023 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Pro Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD Pro Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD Pro Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm
HD Pro Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	88 cm
HD Pro Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm
HD Pro Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm

2022 GMC Sierra 3500 Legroom

In the first row, the 2022 GMC Sierra 3500 legroom is 44 inches.

The second row legroom of the 2022 GMC Sierra 3500 is 43 inches.

For legroom data by trim level, see the table below.

2022 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Denali Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD Denali Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD AT4 Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD AT4 Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD SLT Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD SLT Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.

2022 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD SLT Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.
HD SLT Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.
HD SLE Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.
HD SLE Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	35 in.
HD SLE Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD SLE Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.

2022 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD SLE Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.
HD SLE Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	35 in.
HD SLE Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.
HD SLE Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.
HD Pro Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.
HD Pro Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	35 in.

2022 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Pro Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD Pro Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD Pro Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.
HD Pro Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	35 in.
HD Pro Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.
HD Pro Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.

2022 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Denali Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD Denali Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD AT4 Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD AT4 Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD SLT Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD SLT Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm

2022 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD SLT Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm
HD SLT Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm
HD SLE Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm
HD SLE Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	88 cm
HD SLE Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD SLE Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm

2022 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD SLE Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm
HD SLE Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	88 cm
HD SLE Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm
HD SLE Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm
HD Pro Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm
HD Pro Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	88 cm

2022 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Pro Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD Pro Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD Pro Reg Cab 142" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm
HD Pro Double Cab 162" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	88 cm
HD Pro Crew Cab 172" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm
HD Pro Crew Cab 159" Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm

2021 GMC Sierra 3500 Legroom

In the first row, the 2021 GMC Sierra 3500 legroom is 44 inches.

For legroom data by trim level, see the table below.

2021 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom
HD Regular Cab SLE Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	44 in.
HD Regular Cab SLE Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.
HD Regular Cab SLE Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	44 in.
HD Regular Cab SLE Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.
HD Regular Cab Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	44 in.
HD Regular Cab Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.

2021 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Regular Cab Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	44 in.
HD Regular Cab Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.
HD Extended Cab SLE Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	44 in.	35 in.
HD Extended Cab SLE Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	35 in.
HD Extended Cab SLE Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	44 in.	35 in.
HD Extended Cab SLE Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	35 in.

2021 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Extended Cab Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	44 in.	35 in.
HD Extended Cab Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	35 in.
HD Extended Cab Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	44 in.	35 in.
HD Extended Cab Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	35 in.
HD Crew Cab SLT Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	44 in.	43 in.
HD Crew Cab SLT Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.

2021 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Crew Cab SLT Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	44 in.	43 in.
HD Crew Cab SLT Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.
HD Crew Cab SLE Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	44 in.	43 in.
HD Crew Cab SLE Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD Crew Cab SLE Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	44 in.	43 in.
HD Crew Cab SLE Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.

2021 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Crew Cab Denali Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	44 in.	43 in.
HD Crew Cab Denali Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD Crew Cab AT4 Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	44 in.	43 in.
HD Crew Cab AT4 Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.
HD Crew Cab Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	44 in.	43 in.
HD Crew Cab Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44 in.	43 in.

2021 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Crew Cab Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	44 in.	43 in.
HD Crew Cab Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44 in.	43 in.

2021 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom
HD Regular Cab SLE Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	111 cm
HD Regular Cab SLE Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm
HD Regular Cab SLE Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	111 cm
HD Regular Cab SLE Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm
HD Regular Cab Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	111 cm
HD Regular Cab Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm

2021 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Regular Cab Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	111 cm
HD Regular Cab Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm
HD Extended Cab SLE Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	111 cm	88 cm
HD Extended Cab SLE Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	88 cm
HD Extended Cab SLE Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	111 cm	88 cm
HD Extended Cab SLE Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	88 cm

2021 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Extended Cab Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	111 cm	88 cm
HD Extended Cab Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	88 cm
HD Extended Cab Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	111 cm	88 cm
HD Extended Cab Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	88 cm
HD Crew Cab SLT Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	111 cm	109 cm
HD Crew Cab SLT Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm

2021 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Crew Cab SLT Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	111 cm	109 cm
HD Crew Cab SLT Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm
HD Crew Cab SLE Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	111 cm	109 cm
HD Crew Cab SLE Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD Crew Cab SLE Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	111 cm	109 cm
HD Crew Cab SLE Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm

2021 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Crew Cab Denali Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	111 cm	109 cm
HD Crew Cab Denali Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD Crew Cab AT4 Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	111 cm	109 cm
HD Crew Cab AT4 Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm
HD Crew Cab Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| 4WD	111 cm	109 cm
HD Crew Cab Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	111 cm	109 cm

2021 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD Crew Cab Diesel	6.6L \| Turbo \| V8 \| DURAMAX B20-DIESEL COMPATIBLE \| Allison 10 Spd Auto \| RWD	111 cm	109 cm
HD Crew Cab Diesel	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	111 cm	109 cm

2020 GMC Sierra 3500 Legroom

In the first row, the 2020 GMC Sierra 3500 legroom is 44.5 inches.

For legroom data by trim level, see the table below.

2020 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.
HD 3500 Regular Cab SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.
HD 3500 Regular Cab	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.
HD 3500 Regular Cab	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.
HD 3500 Extended Cab SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	35.2 in.
HD 3500 Extended Cab SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	35.2 in.

2020 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Extended Cab	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	35.2 in.
HD 3500 Extended Cab	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	35.2 in.
HD 3500 Crew Cab SLT	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.
HD 3500 Crew Cab SLT	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	43.4 in.
HD 3500 Crew Cab SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.
HD 3500 Crew Cab SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	43.4 in.

2020 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab Denali	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.
HD 3500 Crew Cab AT4	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.
HD 3500 Crew Cab	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.
HD 3500 Crew Cab	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	43.4 in.
HD 3500 Crew Cab 172" SLT	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.
HD 3500 Crew Cab 159" SLT	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.

2020 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab 172" SLT	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	43.4 in.
HD 3500 Crew Cab 159" SLT	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	43.4 in.
HD 3500 Reg Cab 142" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.
HD 3500 Double Cab 162" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	35.2 in.
HD 3500 Crew Cab 172" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.
HD 3500 Crew Cab 159" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.

2020 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Reg Cab 142" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.
HD 3500 Double Cab 162" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	35.2 in.
HD 3500 Crew Cab 172" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	43.4 in.
HD 3500 Crew Cab 159" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	43.4 in.
HD 3500 Crew Cab 172" Denali	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.
HD 3500 Crew Cab 159" Denali	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.

2020 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Reg Cab 142"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.
HD 3500 Double Cab 162"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	35.2 in.
HD 3500 Crew Cab 172"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.
HD 3500 Crew Cab 159"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.
HD 3500 Reg Cab 142"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.
HD 3500 Double Cab 162"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	35.2 in.

2020 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab 172"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	43.4 in.
HD 3500 Crew Cab 159"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	44.5 in.	43.4 in.
HD 3500 Crew Cab 172" AT4	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.
HD 3500 Crew Cab 159" AT4	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	44.5 in.	43.4 in.

2020 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm
HD 3500 Regular Cab SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm
HD 3500 Regular Cab	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm
HD 3500 Regular Cab	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm
HD 3500 Extended Cab SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	89.4 cm
HD 3500 Extended Cab SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	89.4 cm

2020 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Extended Cab	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	89.4 cm
HD 3500 Extended Cab	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	89.4 cm
HD 3500 Crew Cab SLT	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm
HD 3500 Crew Cab SLT	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	110.2 cm
HD 3500 Crew Cab SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm
HD 3500 Crew Cab SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	110.2 cm

2020 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab Denali	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm
HD 3500 Crew Cab AT4	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm
HD 3500 Crew Cab	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm
HD 3500 Crew Cab	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	110.2 cm
HD 3500 Crew Cab 172" SLT	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm
HD 3500 Crew Cab 159" SLT	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm

2020 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab 172" SLT	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	110.2 cm
HD 3500 Crew Cab 159" SLT	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	110.2 cm
HD 3500 Reg Cab 142" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm
HD 3500 Double Cab 162" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	89.4 cm
HD 3500 Crew Cab 172" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm
HD 3500 Crew Cab 159" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm

2020 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Reg Cab 142" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm
HD 3500 Double Cab 162" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	89.4 cm
HD 3500 Crew Cab 172" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	110.2 cm
HD 3500 Crew Cab 159" SLE	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	110.2 cm
HD 3500 Crew Cab 172" Denali	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm
HD 3500 Crew Cab 159" Denali	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm

2020 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Reg Cab 142"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm
HD 3500 Double Cab 162"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	89.4 cm
HD 3500 Crew Cab 172"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm
HD 3500 Crew Cab 159"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm
HD 3500 Reg Cab 142"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm
HD 3500 Double Cab 162"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	89.4 cm

2020 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab 172"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	110.2 cm
HD 3500 Crew Cab 159"	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| RWD	113 cm	110.2 cm
HD 3500 Crew Cab 172" AT4	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm
HD 3500 Crew Cab 159" AT4	6.6L \| V8 \| WITH DIRECT INJECTION AND VARIABLE VALVE TIMING OLINE \| 6 Spd Auto, Heavy-Duty \| 4WD	113 cm	110.2 cm

2019 GMC Sierra 3500 Legroom

In the first row, the 2019 GMC Sierra 3500 legroom is 45.3 inches.

The second row legroom of the 2019 GMC Sierra 3500 is 40.9 inches.

For legroom data by trim level, see the table below.

2019 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.

2019 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab 167.7" SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab 153.7" SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab 167.7" SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab 153.7" SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.

2019 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab 167.7" SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab 153.7" SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab 167.7" SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab 153.7" SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab 167.7" Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab 153.7" Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.

2019 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab 167.7" Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab 153.7" Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab 167.7"	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab 153.7"	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab 167.7"	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab 153.7"	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.

2019 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm

2019 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab 167.7" SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab 153.7" SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab 167.7" SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab 153.7" SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm

2019 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab 167.7" SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab 153.7" SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab 167.7" SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab 153.7" SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab 167.7" Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab 153.7" Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm

2019 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab 167.7" Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab 153.7" Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab 167.7"	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab 153.7"	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab 167.7"	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab 153.7"	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm

2018 GMC Sierra 3500 Legroom

In the first row, the 2018 GMC Sierra 3500 legroom is 45.3 inches.

For legroom data by trim level, see the table below.

2018 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.
HD 3500 Regular Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.
HD 3500 Regular Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.
HD 3500 Extended Cab SLT	4WD	45.3 in.	34.6 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	34.6 in.

2018 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	34.6 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	34.6 in.
HD 3500 Extended Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	34.6 in.
HD 3500 Extended Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	34.6 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.

2018 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.

2018 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm
HD 3500 Regular Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm
HD 3500 Regular Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm
HD 3500 Extended Cab SLT	4WD	115.1 cm	87.9 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	87.9 cm

2018 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	87.9 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	87.9 cm
HD 3500 Extended Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	87.9 cm
HD 3500 Extended Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	87.9 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm

2018 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm

2017 GMC Sierra 3500 Legroom

In the first row, the 2017 GMC Sierra 3500 legroom is 45.3 inches.

For legroom data by trim level, see the table below.

2017 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.
HD 3500 Regular Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.
HD 3500 Regular Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	34.6 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	34.6 in.

2017 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	34.6 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	34.6 in.
HD 3500 Extended Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	34.6 in.
HD 3500 Extended Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	34.6 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.

2017 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.

2017 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm
HD 3500 Regular Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm
HD 3500 Regular Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	87.9 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	87.9 cm

2017 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	87.9 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	87.9 cm
HD 3500 Extended Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	87.9 cm
HD 3500 Extended Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	87.9 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm

2017 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm

2016 GMC Sierra 3500 Legroom

In the first row, the 2016 GMC Sierra 3500 legroom is 45.3 inches.

For legroom data by trim level, see the table below.

2016 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.
HD 3500 Regular Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.
HD 3500 Regular Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	34.6 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	34.6 in.

2016 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	34.6 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	34.6 in.
HD 3500 Extended Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	34.6 in.
HD 3500 Extended Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	34.6 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.

2016 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.

2016 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm
HD 3500 Regular Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm
HD 3500 Regular Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	87.9 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	87.9 cm

2016 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	87.9 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	87.9 cm
HD 3500 Extended Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	87.9 cm
HD 3500 Extended Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	87.9 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm

2016 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm

2015 GMC Sierra 3500 Legroom

In the first row, the 2015 GMC Sierra 3500 legroom is 45.3 inches.

For legroom data by trim level, see the table below.

2015 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab Work Truck	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.
HD 3500 Regular Cab Work Truck	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.
HD 3500 Extended Cab Work Truck	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	34.6 in.
HD 3500 Extended Cab Work Truck	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	34.6 in.

2015 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	34.6 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	34.6 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	34.6 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	34.6 in.
HD 3500 Crew Cab Work Truck	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab Work Truck	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.

2015 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	45.3 in.	40.9 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	45.3 in.	40.9 in.

2015 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab Work Truck	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm
HD 3500 Regular Cab Work Truck	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm
HD 3500 Extended Cab Work Truck	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	87.9 cm
HD 3500 Extended Cab Work Truck	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	87.9 cm

2015 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	87.9 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	87.9 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	87.9 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	87.9 cm
HD 3500 Crew Cab Work Truck	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab Work Truck	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm

2015 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	115.1 cm	103.9 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	115.1 cm	103.9 cm

2014 GMC Sierra 3500 Legroom

In the first row, the 2014 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2014 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.

2014 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.

2014 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm

2014 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm

2013 GMC Sierra 3500 Legroom

In the first row, the 2013 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2013 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	34.3 in.

2013 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.

2013 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	87.1 cm

2013 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm

2012 GMC Sierra 3500 Legroom

In the first row, the 2012 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2012 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	34.3 in.

2012 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.

2012 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	87.1 cm

2012 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI E85-COMPATIBLE FLEXFUEL \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm

2011 GMC Sierra 3500 Legroom

In the first row, the 2011 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2011 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	34.3 in.

2011 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	39 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	39 in.

2011 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	87.1 cm

2011 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	99.1 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab Denali	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	99.1 cm

2010 GMC Sierra 3500 Legroom

In the first row, the 2010 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2010 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	34.3 in.

2010 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	39 in.

2010 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	87.1 cm

2010 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC SFI \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	99.1 cm

2009 GMC Sierra 3500 Legroom

In the first row, the 2009 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2009 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	34.3 in.

2009 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| RWD	41.3 in.	39 in.

2009 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	87.1 cm

2009 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING \| 6 Spd Auto, Heavy-Duty \| RWD	104.9 cm	99.1 cm

2008 GMC Sierra 3500 Legroom

In the first row, the 2008 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2008 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.6L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	34.3 in.

2008 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.

2008 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.6L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	87.1 cm

2008 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm

2007 GMC Sierra 3500 Legroom

In the first row, the 2007 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2007 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	34.3 in.
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	34.3 in.
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.

2007 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	39 in.
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	39 in.
Classic 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.3 in.
Classic 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.3 in.
Classic 3500 Regular Cab SL	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.3 in.

2007 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
Classic 3500 Regular Cab SL	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.3 in.
Classic 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.3 in.	33.7 in.
Classic 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.3 in.	33.7 in.
Classic 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.3 in.	33.7 in.
Classic 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.3 in.	33.7 in.
Classic 3500 Extended Cab SL	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.3 in.	33.7 in.

2007 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
Classic 3500 Extended Cab SL	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.3 in.	33.7 in.
Classic 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.3 in.	39.1 in.
Classic 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.3 in.	39.1 in.
Classic 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.3 in.	39.1 in.
Classic 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.3 in.	39.1 in.
Classic 3500 Crew Cab SL	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	41.3 in.	39.1 in.

2007 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
Classic 3500 Crew Cab SL	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	41.3 in.	39.1 in.

2007 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	87.1 cm
HD 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	87.1 cm
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm

2007 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
HD 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	99.1 cm
HD 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC VARIABLE VALVE TIMING SFI \| 6 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	99.1 cm
Classic 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.9 cm
Classic 3500 Regular Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.9 cm
Classic 3500 Regular Cab SL	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.9 cm

2007 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
Classic 3500 Regular Cab SL	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.9 cm
Classic 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.9 cm	85.6 cm
Classic 3500 Extended Cab SLT	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.9 cm	85.6 cm
Classic 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.9 cm	85.6 cm
Classic 3500 Extended Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.9 cm	85.6 cm
Classic 3500 Extended Cab SL	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.9 cm	85.6 cm

2007 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
Classic 3500 Extended Cab SL	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.9 cm	85.6 cm
Classic 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.9 cm	99.3 cm
Classic 3500 Crew Cab SLT	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.9 cm	99.3 cm
Classic 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.9 cm	99.3 cm
Classic 3500 Crew Cab SLE	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.9 cm	99.3 cm
Classic 3500 Crew Cab SL	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| 4WD	104.9 cm	99.3 cm

2007 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
Classic 3500 Crew Cab SL	6.0L \| V8 \| VORTEC SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD And Tow/Haul Mode \| RWD	104.9 cm	99.3 cm

2006 GMC Sierra 3500 Legroom

In the first row, the 2006 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2006 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Regular Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.
3500 Regular Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.
3500 Regular Cab SL	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.
3500 Regular Cab SL	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	33.7 in.

2006 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	33.7 in.
3500 Extended Cab SL	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab SL	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	33.7 in.
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	39.1 in.
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	39.1 in.

2006 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	39.1 in.
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	39.1 in.
3500 Crew Cab SL	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	39.1 in.
3500 Crew Cab SL	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	39.1 in.

2006 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Regular Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm
3500 Regular Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm
3500 Regular Cab SL	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm
3500 Regular Cab SL	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	85.6 cm

2006 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	85.6 cm
3500 Extended Cab SL	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab SL	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	85.6 cm
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	99.3 cm
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	99.3 cm

2006 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	99.3 cm
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	99.3 cm
3500 Crew Cab SL	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	99.3 cm
3500 Crew Cab SL	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	99.3 cm

2005 GMC Sierra 3500 Legroom

In the first row, the 2005 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2005 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Regular Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.
3500 Regular Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	33.7 in.
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	33.7 in.

2005 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Extended Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	33.7 in.
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	39.1 in.
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	39.1 in.
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	39.1 in.
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	39.1 in.

2005 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Crew Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	39.1 in.
3500 Crew Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	39.1 in.

2005 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Regular Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm
3500 Regular Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	85.6 cm
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	85.6 cm

2005 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Extended Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	85.6 cm
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	99.3 cm
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	99.3 cm
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	99.3 cm
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	99.3 cm

2005 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Crew Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	99.3 cm
3500 Crew Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	99.3 cm

2004 GMC Sierra 3500 Legroom

In the first row, the 2004 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2004 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Regular Cab SLE	V8 \| VORTEC 6000 SFI \| 5 Spd Manual, With OD \| 4WD	41.3 in.
3500 Regular Cab	V8 \| VORTEC 6000 SFI \| 5 Spd Manual, With OD \| 4WD	41.3 in.
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	33.7 in.
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	33.7 in.

2004 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Extended Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	33.7 in.
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	38.6 in.
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	38.6 in.
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	38.6 in.
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	38.6 in.

2004 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Crew Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	41.3 in.	38.6 in.
3500 Crew Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	41.3 in.	38.6 in.

2004 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Regular Cab SLE	V8 \| VORTEC 6000 SFI \| 5 Spd Manual, With OD \| 4WD	104.9 cm
3500 Regular Cab	V8 \| VORTEC 6000 SFI \| 5 Spd Manual, With OD \| 4WD	104.9 cm
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	85.6 cm
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	85.6 cm

2004 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Extended Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	85.6 cm
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	98 cm
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	98 cm
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	98 cm
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	98 cm

2004 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Crew Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| 4WD	104.9 cm	98 cm
3500 Crew Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled With OD, Tow/Haul Mode \| RWD	104.9 cm	98 cm

2003 GMC Sierra 3500 Legroom

In the first row, the 2003 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2003 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Regular Cab SLE	V8 \| VORTEC 6000 SFI \| 5 Spd Manual, W/OD \| 4WD	41.3 in.
3500 Regular Cab	V8 \| VORTEC 6000 SFI \| 5 Spd Manual, W/OD \| 4WD	41.3 in.
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	33.7 in.
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	33.7 in.

2003 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Extended Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	33.7 in.
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	38.6 in.
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	38.6 in.
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	38.6 in.
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	38.6 in.

2003 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Crew Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	41.3 in.	38.6 in.
3500 Crew Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	41.3 in.	38.6 in.

2003 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Regular Cab SLE	V8 \| VORTEC 6000 SFI \| 5 Spd Manual, W/OD \| 4WD	104.9 cm
3500 Regular Cab	V8 \| VORTEC 6000 SFI \| 5 Spd Manual, W/OD \| 4WD	104.9 cm
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	85.6 cm
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	85.6 cm

2003 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Extended Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	85.6 cm
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	98 cm
3500 Crew Cab SLT	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	98 cm
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	98 cm
3500 Crew Cab SLE	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	98 cm

2003 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Crew Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| 4WD	104.9 cm	98 cm
3500 Crew Cab	V8 \| VORTEC 6000 SFI \| 4 Spd Auto, Heavy-Duty, Electronically Controlled \| RWD	104.9 cm	98 cm

2002 GMC Sierra 3500 Legroom

In the first row, the 2002 GMC Sierra 3500 legroom is 41.3 inches.

For legroom data by trim level, see the table below.

2002 GMC Sierra 3500 Legroom (Imperial)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Regular Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 5 Spd Manual W/Deep Low, Od \| 4WD	41.3 in.
3500 Regular Cab SL	6.0L \| V8 \| (364) SFI (VORTEC) \| 5 Spd Manual W/Deep Low, Od \| 4WD	41.3 in.
3500 Extended Cab SLT	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab SLT	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	41.3 in.	33.7 in.
3500 Extended Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	41.3 in.	33.7 in.

2002 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Extended Cab SL	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41.3 in.	33.7 in.
3500 Extended Cab SL	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	41.3 in.	33.7 in.
3500 Crew Cab SLT	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41.3 in.	38.6 in.
3500 Crew Cab SLT	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	41.3 in.	38.6 in.
3500 Crew Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41.3 in.	38.6 in.
3500 Crew Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	41.3 in.	38.6 in.

2002 GMC Sierra 3500 Legroom (Imperial) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Crew Cab SL	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	41.3 in.	38.6 in.
3500 Crew Cab SL	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	41.3 in.	38.6 in.

2002 GMC Sierra 3500 Legroom (Metric)
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Regular Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 5 Spd Manual W/Deep Low, Od \| 4WD	104.9 cm
3500 Regular Cab SL	6.0L \| V8 \| (364) SFI (VORTEC) \| 5 Spd Manual W/Deep Low, Od \| 4WD	104.9 cm
3500 Extended Cab SLT	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab SLT	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	104.9 cm	85.6 cm
3500 Extended Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	104.9 cm	85.6 cm

2002 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Extended Cab SL	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.9 cm	85.6 cm
3500 Extended Cab SL	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	104.9 cm	85.6 cm
3500 Crew Cab SLT	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.9 cm	98 cm
3500 Crew Cab SLT	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	104.9 cm	98 cm
3500 Crew Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.9 cm	98 cm
3500 Crew Cab SLE	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	104.9 cm	98 cm

2002 GMC Sierra 3500 Legroom (Metric) Continued
Trim	Engine \| Transmission \| Drivetrain	First Row Legroom	Second Row Legroom
3500 Crew Cab SL	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| 4WD	104.9 cm	98 cm
3500 Crew Cab SL	6.0L \| V8 \| (364) SFI (VORTEC) \| 4 Spd Auto w/OD \| RWD	104.9 cm	98 cm