2014 Chevrolet Silverado 3500 HD Crew Cab Owner Manual - Page 351

Driving and Operating Weight Distributing Hitch Usage Optional 9-85 Vehicle Series 1500 Trailer Weight Up to 7000 lbs Hitch Distribution Refer to trailer manufacturer 's recommendation 50% 100% Refer to trailer manufacturer 's recommendation 1500 1500 2500/3500 7001 to 9900 lbs Over 9900 lbs Up to 18000 lbs Required Required Optional B. Front of Vehicle When using a weight-distributing hitch, measure distance (A) before coupling the trailer to the hitch ball. If the hitch requires 50% distribution, measure the height again after the trailer is coupled and adjust the spring bars so the distance (A) is as close as possible to halfway between the two measurements. When 100% distribution is required the spring bars should be adjusted so the distance (A) is the same as the initial measurement after coupling the trailer to the tow vehicle and adjusting the hitch. Fifth-Wheel and Gooseneck Trailering Fifth-wheel and gooseneck trailers can be used with many pickup models. These trailers place a larger percentage of the weight (kingpin weight) on the tow vehicle than conventional trailers. Make sure this weight does not cause the vehicle to exceed GAWR or GVWR. A. Body to Ground Distance