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Find 2008 GMC Sierra towing capacity information by trim and configuration.

Trims

TrimEngineDrivetrainAxle RatioTowing CapacityShop
1500 Crew Cab Long Bed5.3L V84X2
6,500 lbsShop >
1500 Crew Cab Short Bed5.3L V84X2
6,600 lbsShop >
1500 Crew Cab Short Bed6.0L V84WD
8,400 lbsShop >
1500 Crew Cab Short BedVortec 4.8L V8 SFI4WD
5,400 lbsShop >
1500 Crew Cab Short BedVortec 6.2L V8 SFI VVT High-Output4X2
8,600 lbsShop >
1500 Extended Cab Short Bed5.3L V84X2
7,800 lbsShop >
1500 Extended Cab Standard Bed5.3L V84X2
7,700 lbsShop >
1500 Extended Cab Short Bed6.0L V84WD
8,500 lbsShop >
1500 Extended Cab Standard Bed6.0L V84WD
10,200 lbsShop >
1500 Extended Cab Short BedVortec 4.3L V6 MPI4X2
4,400 lbsShop >
1500 Extended Cab Standard BedVortec 4.3L V6 MPI4X2
4,300 lbsShop >
1500 Extended Cab Short BedVortec 4.8L V8 SFI4X2
4,800 lbsShop >
1500 Extended Cab Standard BedVortec 4.8L V8 SFI4X2
4,700 lbsShop >
1500 Regular Cab Long Bed5.3L V84X2
7,000 lbsShop >
1500 Regular Cab Standard Bed5.3L V84X2
7,200 lbsShop >
1500 Regular Cab Long BedVortec 4.3L V6 MPI4X2
4,700 lbsShop >
1500 Regular Cab Standard BedVortec 4.3L V6 MPI4X2
4,800 lbsShop >
1500 Regular Cab Long BedVortec 4.8L V8 SFI4X2
5,100 lbsShop >
1500 Regular Cab Standard BedVortec 4.8L V8 SFI4X2
5,200 lbsShop >
2500 Crew Cab Long Bed6.0L V84X2
9,900 lbsShop >
2500 Crew Cab Standard Bed6.0L V84X2
10,000 lbsShop >
2500 Crew Cab Long Bed6.6L V8 Turbo Diesel4X2
14,400 lbsShop >
2500 Crew Cab Standard Bed6.6L V8 Turbo Diesel4X2
15,200 lbsShop >
2500 Extended Cab Long Bed6.0L V84X2
10,000 lbsShop >
2500 Extended Cab Standard Bed6.0L V84X2
10,200 lbsShop >
2500 Extended Cab Long BedDuramax 6.6L V8 Turbodiesel4X2
15,000 lbsShop >
2500 Extended Cab Standard BedDuramax 6.6L V8 Turbodiesel4X2
15,400 lbsShop >
2500 Regular Cab Long Bed6.0L V84X2
10,400 lbsShop >
2500 Regular Cab Long BedDuramax 6.6L V8 Turbodiesel4X2
15,800 lbsShop >
3500 Crew Cab6.0L V84X2
9,600 lbsShop >
3500 Crew Cab6.6L V8 Turbo Diesel4X2
14,900 lbsShop >
3500 Dual Rear Wheels Crew Cab6.0L V84X2
9,300 lbsShop >
3500 Dual Rear Wheels Crew Cab6.6L V8 Turbo Diesel4X2
16,200 lbsShop >
3500 Dual Rear Wheels Extended Cab6.0L V84X2
9,500 lbsShop >
3500 Dual Rear Wheels Extended Cab6.6L V8 Turbo Diesel4X2
16,300 lbsShop >
3500 Dual Rear Wheels Regular Cab6.0L V8AWD
9,700 lbsShop >
3500 Dual Rear Wheels Regular Cab6.6L V8 Turbo DieselAWD
16,500 lbsShop >
3500 Extended Cab6.0L V84X2
9,700 lbsShop >
3500 Extended Cab6.6L V8 Turbo Diesel4X2
15,100 lbsShop >
3500 Regular Cab6.0L V84X2
10,100 lbsShop >
3500 Regular Cab6.6L V8 Turbo DieselAWD
15,300 lbsShop >

Related Glossary Terms

GVWR

Gross Vehicle Weight Rating, or GVWR, is the maximum allowable weight of an RV including cargo, fluids, and passengers. Staying within GVWR is essential for safe handling, braking, and compliance.

GCWR

Gross Combined Weight Rating, or GCWR, is the maximum total allowable weight of a tow vehicle plus the RV or trailer it is pulling. It is one of the most important towing specifications to understand before buying or towing an RV.

Payload Capacity

Payload capacity is the maximum combined weight of cargo, passengers, fluids, and gear that a vehicle or RV can safely carry. It is an important figure for both tow vehicles and RVs.

Dry Weight

Dry weight is the weight of an RV without cargo, fluids, propane, or passengers. It is often used as a starting point when estimating towing requirements.

Tongue Weight

Tongue weight is the downward force a trailer places on the hitch of the tow vehicle. Proper tongue weight is critical for towing stability, steering control, and safety.

Hitch Weight

Hitch weight is the amount of weight a trailer places on the hitch of the tow vehicle. It is closely related to tongue weight and helps determine whether a towing setup is safe.

Curb Weight

Curb weight is the weight of a vehicle with standard equipment and fuel but without passengers or cargo. It is often used when evaluating tow vehicle and payload calculations.

Weight Distribution Hitch

A weight distribution hitch helps spread trailer weight more evenly across the tow vehicle and trailer axles. It improves towing stability, braking, and overall handling.

Frequently asked questions

Top configurations in this dataset: 1. 3500 Dual Rear Wheels Regular Cab, 6.6L V8 Turbo Diesel, AWD, axle 3.73 (16,500 lbs) 2. 3500 Dual Rear Wheels Extended Cab, 6.6L V8 Turbo Diesel, 4X2, axle 3.73 (16,300 lbs) 3. 3500 Dual Rear Wheels Crew Cab, 6.6L V8 Turbo Diesel, 4X2, axle 3.73 (16,200 lbs) 4. 2500 Regular Cab Long Bed, Duramax 6.6L V8 Turbodiesel, 4X2, axle 3.73 (15,800 lbs) 5. 2500 Extended Cab Standard Bed, Duramax 6.6L V8 Turbodiesel, 4X2, axle 3.73 (15,400 lbs)

By highest conventional towing rating in this dataset: 1. 3.73 (up to 16,500 lbs) 2. 4.10 (up to 12,900 lbs) 3. 3.42 (up to 8,600 lbs) Always confirm your exact configuration from the manufacturer documentation and door-sticker ratings.

Fifth-wheel towing capacity is not published for these configurations yet. Fifth-wheel limits can differ from conventional towing ratings.

Gooseneck towing capacity is not published for these configurations yet. Gooseneck limits can differ from both fifth-wheel and conventional towing values.