Specifications Comparison: 2008 GMC Sierra 1500 vs 2012 GMC Sierra 1500

Towing Capacity

Trim	Engine	Drive train	Towing Capacity (lbs)
1500 Extended Cab SL	4.8L V8	RWD	4,700 lbs.
1500 Extended Cab SL	4.8L V8	4WD	5,500 lbs.
1500 Extended Cab SLE	4.8L V8	RWD	4,700 lbs.
1500 Regular Cab SLE	4.8L 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	4.8L V6	RWD	4,800 lbs.
Crew Cab Denali	6.2L V8	RWD	8,600 lbs.
Crew Cab Denali	6.2L V8	AWD	8,400 lbs.

Trim	Engine	Drive train	Towing Capacity (lbs)
1500 Crew Cab Denali	6.2L V8	RWD	6,600 lbs.
1500 Crew Cab Denali	6.2L V8	AWD	9,400 lbs.
1500 Crew Cab SL	4.8L V8	RWD	4,700 lbs.
1500 Crew Cab SL	4.8L V8	4WD	5,500 lbs.
1500 Crew Cab SLE	4.8L V8	RWD	4,700 lbs.
1500 Crew Cab SLE	4.8L V8	4WD	5,500 lbs.
1500 Crew Cab SLT	5.3L V8	RWD	6,800 lbs.
1500 Crew Cab SLT	5.3L V8	4WD	5,500 lbs.
1500 Crew Cab Work	4.8L V8	RWD	4,700 lbs.
1500 Crew Cab Work	4.8L V8	4WD	5,500 lbs.
1500 Crew Cab XFE	5.3L V8	RWD	7,000 lbs.
1500 Extended Cab SL	4.8L V8	RWD	4,700 lbs.
1500 Extended Cab SL	4.8L V8	4WD	5,500 lbs.
1500 Extended Cab SLE	4.8L V8	RWD	4,700 lbs.
1500 Extended Cab SLE	4.8L V8	4WD	5,500 lbs.
1500 Extended Cab SLT	5.3L V8	RWD	6,900 lbs.
1500 Extended Cab SLT	5.3L V8	4WD	6,800 lbs.
1500 Extended Cab Work	4.3L V6	RWD	4,400 lbs.
1500 Extended Cab Work	4.8L V8	4WD	5,500 lbs.
1500 Regular Cab SLE	4.8L V8	RWD	4,700 lbs.
1500 Regular Cab SLE	4.8L V8	4WD	6,000 lbs.
1500 Regular Cab Work	4.3L V6	RWD	4,800 lbs.
1500 Regular Cab Work	4.3L V6	4WD	5,100 lbs.
1500 Crew Cab	6.0L V8	RWD	6,100 lbs.
1500 Crew Cab	6.0L V8	4WD	5,900 lbs.