2007 Chevrolet Avalanche Owner's Manual - Page 429

Total Weight on Your Vehicle's Tires Be sure your vehicle's tires are inflated to the upper limit for cold tires. You'll find these numbers on the Certification label at the rear edge of the driver's door or see Tires on page 500. Then be sure you don't go over the GVW and rear axle limits for your vehicle, including the weight of the trailer tongue. If you use a weight distributing hitch, make sure you don't go over the rear axle limit before you apply the weight distributing spring bars. Weight-Distributing Hitches and Weight Carrying Hitches Hitches It's important to have the correct hitch equipment. Crosswinds, large trucks going by and rough roads are a few reasons why you'll need the right hitch. (A) Body-to-Ground Distance (B) Front of Vehicle When using a weight-distributing hitch, the hitch must be adjusted so that the distance (A) remains the same both before and after coupling the trailer to the tow vehicle. 429