2011 Chevrolet Silverado 1500 Regular Cab Owner's Manual - Page 388

9-104 Driving and Operating Trailer tongue weight (A) should be 10 to 15 percent and fifth-wheel or gooseneck kingpin weight should be 15 to 25 percent of the loaded trailer weight up to the maximums for vehicle series and hitch type.: Vehicle Series 1500 2500HD/3500 1500 2500HD/3500 1500 2500HD 3500 Single Rear Wheels 3500 Dual Rear Wheels Hitch Type Weight Carrying Weight Carrying Weight Distributing Weight Distributing Fifth-Wheel Gooseneck Fifth-Wheel Gooseneck Fifth-Wheel Gooseneck Fifth-Wheel Gooseneck Maximum Tongue Weight 272 kg (600 lbs) 453 kg (1,000 lbs) 499 kg (1,100 lbs) 680 kg (1,500 lbs) 680 kg (1,500 lbs) 1 134 kg (2,500 lbs) 1 360 kg (3,000 lbs) 1 587 kg (3,500 lbs) passengers and cargo in the vehicle reduce the amount of tongue weight the vehicle can carry, which will also reduce the trailer weight the vehicle can tow. See " Vehicle Load Limits" for more information about the vehicle's maximum load capacity. Do not exceed the maximum allowable tongue weight for the vehicle. Choose the shortest hitch extension that will position the hitch ball closest to the vehicle. This will help reduce the effect of trailer tongue weight on the rear axle. Trailering may be limited by the vehicle's ability to carry tongue weight. Tongue or kingpin weight cannot cause the vehicle to exceed the GVWR (Gross Vehicle Weight Rating) or the RGAWR (Rear Gross