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

Legroom

Trim	Eng.	Drive train	1st Row Legroom (in)	2nd Row Legroom (in)
1500 Extended Cab	V8	RWD	41.3	33.7
1500 Extended Cab	V8	4WD	41.3	33.7
1500 Extended Cab SLE	V8	RWD	41.3	33.7
1500 Extended Cab SLE	V8	4WD	41.3	33.7
1500 Regular Cab	V6	RWD	41.3
1500 Regular Cab	V8	4WD	41.3
1500 Regular Cab SLE	V8	RWD	41.3
1500 Regular Cab SLE	V8	4WD	41.3
1500 Extended Cab SLT	V8	RWD	41.3	33.7
1500 Extended Cab SLT	V8	4WD	41.3	33.7
Crew Cab 1500 SLE	V8	RWD	41.3	39.1
Crew Cab 1500 SLE	V8	4WD	41.3	39.1
Crew Cab 1500 SLT	V8	RWD	41.3	39.1
Crew Cab 1500 SLT	V8	4WD	41.3	39.1
Extended Cab Denali	V8	AWD	41.3	33.7

Trim	Eng.	Drive train	1st Row Legroom (in)	2nd Row Legroom (in)
Denali Crew Cab 147"	5.3L V8	RWD	44.53	43.4
Denali Crew Cab 147"	5.3L V8	4WD	44.53	43.4
Denali Crew Cab 157"	5.3L V8	4WD	44.53	43.4
Elevation Crew Cab 147"		RWD	44.53	43.4
Elevation Double Cab 147"		RWD	44.53	35.24
Elevation Crew Cab 147" w/3SB		4WD	44.53	43.4
Elevation Crew Cab 147" w/3VL		4WD	44.53	43.4
Elevation Crew Cab 157"		4WD	44.53	43.4
Elevation Double Cab 147" w/3SB		4WD	44.53	35.24
Elevation Double Cab 147" w/3VL		4WD	44.53	35.24
Pro Crew Cab 147"		RWD	44.53	43.4
Pro Double Cab 147"		RWD	44.53	35.24
Pro Reg Cab 126"		RWD	44.53
Pro Reg Cab 140"		RWD	44.53
Pro Crew Cab 147"		4WD	44.53	43.4
Pro Crew Cab 157"		4WD	44.53	43.4
Pro Double Cab 147"		4WD	44.53	35.24
Pro Reg Cab 126"		4WD	44.53
Pro Reg Cab 140"		4WD	44.53
SLE Crew Cab 147"		RWD	44.53	43.4
SLE Double Cab 147"		RWD	44.53	35.24
SLE Crew Cab 147"		4WD	44.53	43.4
SLE Crew Cab 157"		4WD	44.53	43.4
SLE Double Cab 147"		4WD	44.53	35.24
SLT Crew Cab 147"	5.3L V8	RWD	44.53	43.4
SLT Crew Cab 147"	5.3L V8	4WD	44.53	43.4
SLT Crew Cab 157"	5.3L V8	4WD	44.53	43.4
AT4 Crew Cab 147"	3.0L I6	4WD	44.53	43.4
AT4 Crew Cab 157"	3.0L I6	4WD	44.53	43.4
AT4X Crew Cab 147"	3.0L I6	4WD	44.53	43.4
Denali Ultimate Crew Cab 147"	6.2L V8	4WD	44.53	43.4

Trim	Eng.	Drive train	1st Row Legroom (cm)	2nd Row Legroom (cm)
1500 Extended Cab	V8	RWD	104.9	85.6
1500 Extended Cab	V8	4WD	104.9	85.6
1500 Extended Cab SLE	V8	RWD	104.9	85.6
1500 Extended Cab SLE	V8	4WD	104.9	85.6
1500 Regular Cab	V6	RWD	104.9
1500 Regular Cab	V8	4WD	104.9
1500 Regular Cab SLE	V8	RWD	104.9
1500 Regular Cab SLE	V8	4WD	104.9
1500 Extended Cab SLT	V8	RWD	104.9	85.6
1500 Extended Cab SLT	V8	4WD	104.9	85.6
Crew Cab 1500 SLE	V8	RWD	104.9	99.3
Crew Cab 1500 SLE	V8	4WD	104.9	99.3
Crew Cab 1500 SLT	V8	RWD	104.9	99.3
Crew Cab 1500 SLT	V8	4WD	104.9	99.3
Extended Cab Denali	V8	AWD	104.9	85.6

Trim	Eng.	Drive train	1st Row Legroom (cm)	2nd Row Legroom (cm)
Denali Crew Cab 147"	5.3L V8	RWD	113	110
Denali Crew Cab 147"	5.3L V8	4WD	113	110
Denali Crew Cab 157"	5.3L V8	4WD	113	110
Elevation Crew Cab 147"		RWD	113	110
Elevation Double Cab 147"		RWD	113	90
Elevation Crew Cab 147" w/3SB		4WD	113	110
Elevation Crew Cab 147" w/3VL		4WD	113	110
Elevation Crew Cab 157"		4WD	113	110
Elevation Double Cab 147" w/3SB		4WD	113	90
Elevation Double Cab 147" w/3VL		4WD	113	90
Pro Crew Cab 147"		RWD	113	110
Pro Double Cab 147"		RWD	113	90
Pro Reg Cab 126"		RWD	113
Pro Reg Cab 140"		RWD	113
Pro Crew Cab 147"		4WD	113	110
Pro Crew Cab 157"		4WD	113	110
Pro Double Cab 147"		4WD	113	90
Pro Reg Cab 126"		4WD	113
Pro Reg Cab 140"		4WD	113
SLE Crew Cab 147"		RWD	113	110
SLE Double Cab 147"		RWD	113	90
SLE Crew Cab 147"		4WD	113	110
SLE Crew Cab 157"		4WD	113	110
SLE Double Cab 147"		4WD	113	90
SLT Crew Cab 147"	5.3L V8	RWD	113	110
SLT Crew Cab 147"	5.3L V8	4WD	113	110
SLT Crew Cab 157"	5.3L V8	4WD	113	110
AT4 Crew Cab 147"	3.0L I6	4WD	113	110
AT4 Crew Cab 157"	3.0L I6	4WD	113	110
AT4X Crew Cab 147"	3.0L I6	4WD	113	110
Denali Ultimate Crew Cab 147"	6.2L V8	4WD	113	110