Specifications Comparison: 2021 GMC Sierra 3500 vs 2004 GMC Sierra 3500

Curb Weight

Trim	Engine	Drive train	Curb Weight	Horsepower	Weight / Horsepower Ratio
HD Crew Cab	6.6L V8	RWD	6,887 lbs.	401 hp	17.2 lbs/hp
HD Crew Cab	6.6L V8	4WD	7,172 lbs.	401 hp	17.9 lbs/hp
HD Crew Cab AT4	6.6L V8	4WD	6,766 lbs.	401 hp	16.9 lbs/hp
HD Crew Cab Denali	6.6L V8	4WD	7,172 lbs.	401 hp	17.9 lbs/hp
HD Crew Cab SLE	6.6L V8	RWD	6,466 lbs.	401 hp	16.1 lbs/hp
HD Crew Cab SLE	6.6L V8	4WD	6,766 lbs.	401 hp	16.9 lbs/hp
HD Crew Cab SLT	6.6L V8	RWD	6,466 lbs.	401 hp	16.1 lbs/hp
HD Crew Cab SLT	6.6L V8	4WD	6,766 lbs.	401 hp	16.9 lbs/hp
HD Extended Cab	6.6L V8	RWD	6,796 lbs.	401 hp	16.9 lbs/hp
HD Extended Cab	6.6L V8	4WD	7,079 lbs.	401 hp	17.7 lbs/hp
HD Extended Cab SLE	6.6L V8	RWD	6,796 lbs.	401 hp	16.9 lbs/hp
HD Extended Cab SLE	6.6L V8	4WD	7,079 lbs.	401 hp	17.7 lbs/hp
HD Regular Cab	6.6L V8	RWD	6,339 lbs.	401 hp	15.8 lbs/hp
HD Regular Cab	6.6L V8	4WD	6,636 lbs.	401 hp	16.5 lbs/hp
HD Regular Cab SLE	6.6L V8	RWD	6,339 lbs.	401 hp	15.8 lbs/hp
HD Regular Cab SLE	6.6L V8	4WD	6,636 lbs.	401 hp	16.5 lbs/hp

Trim	Engine	Drive train	Curb Weight	Horsepower	Weight / Horsepower Ratio
3500 Crew Cab	V8	RWD	5,928 lbs.	300 hp	19.8 lbs/hp
3500 Crew Cab	V8	4WD	6,215 lbs.	300 hp	20.7 lbs/hp
3500 Crew Cab SLE	V8	RWD	5,928 lbs.	300 hp	19.8 lbs/hp
3500 Crew Cab SLE	V8	4WD	6,215 lbs.	300 hp	20.7 lbs/hp
3500 Crew Cab SLT	V8	RWD	5,928 lbs.	300 hp	19.8 lbs/hp
3500 Crew Cab SLT	V8	4WD	6,215 lbs.	300 hp	20.7 lbs/hp
3500 Extended Cab	V8	RWD	5,745 lbs.	300 hp	19.1 lbs/hp
3500 Extended Cab	V8	4WD	6,033 lbs.	300 hp	20.1 lbs/hp
3500 Extended Cab SLE	V8	RWD	5,745 lbs.	300 hp	19.1 lbs/hp
3500 Extended Cab SLE	V8	4WD	6,033 lbs.	300 hp	20.1 lbs/hp
3500 Extended Cab SLT	V8	RWD	5,745 lbs.	300 hp	19.1 lbs/hp
3500 Extended Cab SLT	V8	4WD	6,033 lbs.	300 hp	20.1 lbs/hp
3500 Regular Cab	V8	4WD	5,673 lbs.	300 hp	18.9 lbs/hp
3500 Regular Cab SLE	V8	4WD	5,673 lbs.	300 hp	18.9 lbs/hp