Specifications Comparison: 2008 GMC Sierra 3500 vs 2004 GMC Sierra 3500

Towing Capacity

Trim	Engine	Drive train	Towing Capacity (lbs)
HD 3500 Crew Cab SLE	6.0L V8	RWD	9,600 lbs.
HD 3500 Crew Cab SLE	6.0L V8	4WD	9,300 lbs.
HD 3500 Crew Cab SLT	6.0L V8	RWD	9,600 lbs.
HD 3500 Crew Cab SLT	6.0L V8	4WD	9,300 lbs.
HD 3500 Extended Cab SLE	6.0L V8	RWD	9,700 lbs.
HD 3500 Extended Cab SLE	6.0L V8	4WD	9,500 lbs.
HD 3500 Extended Cab SLT	6.0L V8	RWD	9,700 lbs.
HD 3500 Extended Cab SLT	6.0L V8	4WD	9,500 lbs.
HD 3500 Regular Cab SLE	6.0L V8	RWD	10,100 lbs.
HD 3500 Regular Cab SLE	6.6L V8	4WD	9,900 lbs.

Trim	Engine	Drive train	Towing Capacity (lbs)
3500 Crew Cab	V8	RWD	9,600 lbs.
3500 Crew Cab	V8	4WD	9,300 lbs.
3500 Crew Cab SLE	V8	RWD	9,600 lbs.
3500 Crew Cab SLE	V8	4WD	9,300 lbs.
3500 Crew Cab SLT	V8	RWD	9,600 lbs.
3500 Crew Cab SLT	V8	4WD	9,300 lbs.
3500 Extended Cab	V8	RWD	9,800 lbs.
3500 Extended Cab	V8	4WD	9,500 lbs.
3500 Extended Cab SLE	V8	RWD	9,800 lbs.
3500 Extended Cab SLE	V8	4WD	9,500 lbs.
3500 Extended Cab SLT	V8	RWD	9,800 lbs.
3500 Extended Cab SLT	V8	4WD	9,500 lbs.
3500 Regular Cab	V8	4WD	9,900 lbs.
3500 Regular Cab SLE	V8	4WD	9,900 lbs.