2004 Chevrolet S10 Pickup Owner's Manual - Page 240

Weight-Distributing Hitches and Weight Carrying Hitches If you'll be pulling a trailer, that when loaded, will weigh more than 5,000 lbs (2 270 kg) be sure to use a properly mounted weight-distributing hitch and sway control of the proper size. This equipment is very important for proper vehicle loading and good handling when driving. You should always use a sway control if your traile will weigh more than these limits. You can ask a hitch dealer about sway controls. Safety Chains You should always attach chains between your vehicle and your trailer. Cross the safety chains under the tongue of the trailer to help prevent the tongue from contacting the road if it becomes separated from the hitch. Instructions about safety chains may be provided by the hitch manufacturer or by the trailer manufacturer. For trailers up to 3,500 lbs. (1 589 kg) you may attach the safety chains to the attaching points on the bumper. For heavier trailers, follow the trailer or hitch manufacturer's recommendation for attaching safety chains. Always leave just enough slack so you can turn with your rig. Never allow safety chains to drag on the ground. 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 tow vehicle. If you use a step-bumper hitch, your bumper could be damaged by sharp turns. Make sure you have ample room when turning to avoid contact between the trailer and the bumper. 4-56