Specifications Comparison: 2007 GMC Sierra 1500 vs 2003 GMC Sierra 1500

Towing Capacity

Trim	Engine	Drive train	Towing Capacity (lbs)
1500 Extended Cab SLE	4.8L V8	4WD	5,000 lbs.
1500 Regular Cab SLE	4.3L V6	4WD	5,000 lbs.
1500 Crew Cab SL	4.8L V8	RWD	4,600 lbs.
1500 Crew Cab SL	4.8L V8	4WD	5,000 lbs.
1500 Crew Cab SLE	4.8L V8	RWD	4,600 lbs.
1500 Crew Cab SLE	4.8L V8	4WD	5,000 lbs.
1500 Crew Cab SLT	5.3L V8	RWD	6,600 lbs.
1500 Crew Cab SLT	5.3L V8	4WD	7,500 lbs.
1500 Extended Cab SLE	4.3L V6	RWD	4,400 lbs.
1500 Extended Cab SLT	5.3L V8	RWD	6,800 lbs.
1500 Extended Cab SLT	5.3L V8	4WD	7,500 lbs.
1500 Regular Cab SLE	4.3L V6	RWD	4,800 lbs.
Classic 1500 Crew Cab SL	4.8L V8	RWD	5,700 lbs.
Classic 1500 Crew Cab SL	4.8L V8	4WD	6,400 lbs.
Classic 1500 Crew Cab SLE	5.3L V8	RWD	6,700 lbs.
Classic 1500 Crew Cab SLE	5.3L V8	4WD	7,400 lbs.
Classic 1500 Crew Cab SLT	5.3L V8	RWD	6,700 lbs.
Classic 1500 Crew Cab SLT	5.3L V8	4WD	7,400 lbs.
Classic 1500 Extended Cab SLT	5.3L V8	RWD	7,000 lbs.
Classic 1500 Extended Cab SLT	5.3L V8	4WD	7,700 lbs.
Classic 1500 Extended Cab SLE	5.3L V8	RWD	6,700 lbs.
Classic 1500 Extended Cab SLE	5.3L V8	4WD	7,400 lbs.
HD Classic 1500 Crew Cab SLE	6.0L V8	RWD	8,300 lbs.
HD Classic 1500 Crew Cab SLE	6.0L V8	4WD	7,900 lbs.
HD Classic 1500 Crew Cab SLT	6.0L V8	RWD	8,300 lbs.
HD Classic 1500 Crew Cab SLT	6.0L V8	4WD	7,900 lbs.
Crew Cab Denali	6.0L V8	AWD	8,100 lbs.

Trim	Engine	Drive train	Towing Capacity (lbs)
1500 Extended Cab	V6	RWD	4,700 lbs.
1500 Extended Cab	V8	RWD	6,100 lbs.
1500 Extended Cab SLE	V8	RWD	6,100 lbs.
1500 Extended Cab SLE	V8	4WD	6,800 lbs.
1500 Extended Cab SLT	V8	RWD	6,100 lbs.
1500 Extended Cab SLT	V8	4WD	6,800 lbs.
1500 Regular Cab	V6	RWD	4,000 lbs.
1500 Regular Cab	V8	4WD	7,100 lbs.
1500 Regular Cab SLE	V8	RWD	4,400 lbs.
1500 Regular Cab SLE	V8	4WD	7,100 lbs.
HD 1500 Crew Cab SLE	V8	RWD	8,200 lbs.
HD 1500 Crew Cab SLE	V8	4WD	7,900 lbs.
HD 1500 Crew Cab SLT	V8	RWD	8,200 lbs.
HD 1500 Crew Cab SLT	V8	4WD	7,900 lbs.
Extended Cab Denali	V8	AWD	10,000 lbs.