Specifications Comparison: 2004 GMC Sierra 1500 vs 2024 GMC Sierra 1500

Headroom

Trim	Eng.	Drive train	1st Row Headroom (in)	2nd Row Headroom (in)
1500 Extended Cab	V8	RWD	41	38.4
1500 Extended Cab	V8	4WD	41	38.4
1500 Extended Cab SLE	V8	RWD	41	38.4
1500 Extended Cab SLE	V8	4WD	41	38.4
1500 Regular Cab	V6	RWD	41
1500 Regular Cab	V8	4WD	41
1500 Regular Cab SLE	V8	RWD	41
1500 Regular Cab SLE	V8	4WD	41
1500 Extended Cab SLT	V8	RWD	41	38.4
1500 Extended Cab SLT	V8	4WD	41	38.4
Crew Cab 1500 SLE	V8	RWD	40.7	40.2
Crew Cab 1500 SLE	V8	4WD	40.7	40.2
Crew Cab 1500 SLT	V8	RWD	40.7	40.2
Crew Cab 1500 SLT	V8	4WD	40.7	40.2
Extended Cab Denali	V8	AWD	41	38.4

Trim	Eng.	Drive train	1st Row Headroom (in)	2nd Row Headroom (in)
Denali Crew Cab 147"	5.3L V8	RWD	43.03	40.12
Denali Crew Cab 147"	5.3L V8	4WD	43.03	40.12
Denali Crew Cab 157"	5.3L V8	4WD	43.03	40.12
Elevation Crew Cab 147"		RWD	43.03	40.12
Elevation Double Cab 147"		RWD	43.03	39.88
Elevation Crew Cab 147" w/3SB		4WD	43.03	40.12
Elevation Crew Cab 147" w/3VL		4WD	43.03	40.12
Elevation Crew Cab 157"		4WD	43.03	40.12
Elevation Double Cab 147" w/3SB		4WD	43.03	39.88
Elevation Double Cab 147" w/3VL		4WD	43.03	39.88
Pro Crew Cab 147"		RWD	43.03	40.12
Pro Double Cab 147"		RWD	43.03	39.88
Pro Reg Cab 126"		RWD	43.11
Pro Reg Cab 140"		RWD	43.11
Pro Crew Cab 147"		4WD	43.03	40.12
Pro Crew Cab 157"		4WD	43.03	40.12
Pro Double Cab 147"		4WD	43.03	39.88
Pro Reg Cab 126"		4WD	43.11
Pro Reg Cab 140"		4WD	43.11
SLE Crew Cab 147"		RWD	43.03	40.12
SLE Double Cab 147"		RWD	43.03	39.88
SLE Crew Cab 147"		4WD	43.03	40.12
SLE Crew Cab 157"		4WD	43.03	40.12
SLE Double Cab 147"		4WD	43.03	39.88
SLT Crew Cab 147"	5.3L V8	RWD	43.03	40.12
SLT Crew Cab 147"	5.3L V8	4WD	43.03	40.12
SLT Crew Cab 157"	5.3L V8	4WD	43.03	40.12
AT4 Crew Cab 147"	3.0L I6	4WD	43.03	40.12
AT4 Crew Cab 157"	3.0L I6	4WD	43.03	40.12
AT4X Crew Cab 147"	3.0L I6	4WD	43.03	40.12
Denali Ultimate Crew Cab 147"	6.2L V8	4WD	43.03	40.12

Trim	Eng.	Drive train	1st Row Headroom (cm)	2nd Row Headroom (cm)
1500 Extended Cab	V8	RWD	104.1	97.5
1500 Extended Cab	V8	4WD	104.1	97.5
1500 Extended Cab SLE	V8	RWD	104.1	97.5
1500 Extended Cab SLE	V8	4WD	104.1	97.5
1500 Regular Cab	V6	RWD	104.1
1500 Regular Cab	V8	4WD	104.1
1500 Regular Cab SLE	V8	RWD	104.1
1500 Regular Cab SLE	V8	4WD	104.1
1500 Extended Cab SLT	V8	RWD	104.1	97.5
1500 Extended Cab SLT	V8	4WD	104.1	97.5
Crew Cab 1500 SLE	V8	RWD	103.4	102.1
Crew Cab 1500 SLE	V8	4WD	103.4	102.1
Crew Cab 1500 SLT	V8	RWD	103.4	102.1
Crew Cab 1500 SLT	V8	4WD	103.4	102.1
Extended Cab Denali	V8	AWD	104.1	97.5

Trim	Eng.	Drive train	1st Row Headroom (cm)	2nd Row Headroom (cm)
Denali Crew Cab 147"	5.3L V8	RWD	109	102
Denali Crew Cab 147"	5.3L V8	4WD	109	102
Denali Crew Cab 157"	5.3L V8	4WD	109	102
Elevation Crew Cab 147"		RWD	109	102
Elevation Double Cab 147"		RWD	109	101
Elevation Crew Cab 147" w/3SB		4WD	109	102
Elevation Crew Cab 147" w/3VL		4WD	109	102
Elevation Crew Cab 157"		4WD	109	102
Elevation Double Cab 147" w/3SB		4WD	109	101
Elevation Double Cab 147" w/3VL		4WD	109	101
Pro Crew Cab 147"		RWD	109	102
Pro Double Cab 147"		RWD	109	101
Pro Reg Cab 126"		RWD	109
Pro Reg Cab 140"		RWD	109
Pro Crew Cab 147"		4WD	109	102
Pro Crew Cab 157"		4WD	109	102
Pro Double Cab 147"		4WD	109	101
Pro Reg Cab 126"		4WD	109
Pro Reg Cab 140"		4WD	109
SLE Crew Cab 147"		RWD	109	102
SLE Double Cab 147"		RWD	109	101
SLE Crew Cab 147"		4WD	109	102
SLE Crew Cab 157"		4WD	109	102
SLE Double Cab 147"		4WD	109	101
SLT Crew Cab 147"	5.3L V8	RWD	109	102
SLT Crew Cab 147"	5.3L V8	4WD	109	102
SLT Crew Cab 157"	5.3L V8	4WD	109	102
AT4 Crew Cab 147"	3.0L I6	4WD	109	102
AT4 Crew Cab 157"	3.0L I6	4WD	109	102
AT4X Crew Cab 147"	3.0L I6	4WD	109	102
Denali Ultimate Crew Cab 147"	6.2L V8	4WD	109	102