1998 GMC Safari Owner's Manual - Page 215

Weight of the Trailer Tongue The tongue load (A) any trailer is an important of weight to measure because it affects the total or gross weight of your vehicle. The Gross Vehicle Weight (GVW) includes the curb weight the vehicle, any of cargo you may carry in and the people who will be it, riding in the vehicle. And you will tow a trailer, you if must add the tongue load the GVW because your to vehicle will be carrying that weight, too. See "Loading Your Vehicle" in the Index for more information about your vehicle's maximum load capacity. If you're using a weight-carrying hitch, the trailer tongue (A) should weigh10 percent of the total loaded trailer weight (B). you're using a weight-distributing If hitch, the trailer tongue (A) should weigh percent of 12 the total loaded trailer weight (B). After you've loaded your trailer, weigh the trailer and then the tongue, separately, see if the weights are to proper. If they aren't, you may be able to get them right simply by moving some items around in the trailer. Total Weight on Your Vehicle's Tires Be sure your vehicle's tires are inflated upper to the limit for cold tires. You'll find these numbers on the Certification labelat the rear edge the driver's door or of see "Tire Loading" in the Index. Then be sure you don't go over the GVW limit your vehicle, including the for weight of the trailer tongue. A B 4-31