2008 GMC Sierra 1500 Pickup Owner's Manual - Page 303

Use the following chart to determine how much your vehicle can weigh, based upon your vehicle model and options. C-1500* Axle Ratio Maximum Trailer Weight **GCWR 6.2L V8 3.42 8,600 lbs (3 900 kg) 14,000 lbs (6 350 kg) *Fifth-wheel or gooseneck trailering is neither designed nor intended for this vehicle. **The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and trailer including any passengers, cargo, equipment and conversions. The GCWR for your vehicle should not be exceeded. K-1500* Axle Ratio Maximum Trailer Weight **GCWR 6.2L V8 3.42 8,400 lbs (3 810 kg) 14,000 lbs (6 350 kg) *Fifth-wheel or gooseneck trailering is neither designed nor intended for this vehicle. **The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and trailer including any passengers, cargo, equipment and conversions. The GCWR for your vehicle should not be exceeded. Ask your dealer/retailer for our trailering information or advice, or write us at our Customer Assistance Offices. See Customer Assistance Offices on page 7-5 for more information. If you have a lot of options, equipment, passengers or cargo in your vehicle, it will reduce the tongue weight your vehicle can carry, which will also reduce the trailer weight your vehicle can tow. And if you will tow a trailer, you must add the tongue load to the GVW because your vehicle will be carrying that weight, too. See Loading Your Vehicle on page 4-34 for more information about your vehicle's maximum load capacity. Weight of Trailer Tongue The tongue load (A) of any trailer is an important weight to measure because it affects the total or gross weight of your vehicle. The Gross Vehicle Weight (GVW) includes the curb weight of the vehicle, any cargo you may carry in it, and the people who will be riding in the vehicle. 4-45