2004 Ford F150 Owner Guide 5th Printing - Page 179

Driving Do not use replacement tires with lower load carrying capacities than the originals because they may lower the vehicle's GVWR and GAWR limitations. Replacement tires with a higher limit than the originals do not increase the GVWR and GAWR limitations. Exceeding any vehicle weight rating limitation could result in serious damage to the vehicle and/or personal injury. Special loading instructions for owners of pickup trucks and utility-type vehicles For important information regarding safe operation of this type of vehicle, see the Preparing to drive your vehicle section in this chapter. Loaded vehicles may handle differently than unloaded vehicles. Extra precautions, such as slower speeds and increased stopping distance, should be taken when driving a heavily loaded vehicle. Your vehicle can haul more cargo and people than most passenger cars. Depending upon the type and placement of the load, hauling cargo and people may raise the center of gravity of the vehicle. Calculating the load your vehicle can carry/tow 1. Use the appropriate maximum GCWR chart (in the Trailer towing section in this chapter) for your type of engine, rear axle ratio and tire size. 2. Weigh your vehicle without cargo. To obtain correct weights, take your vehicle to a shipping company or an inspection station for trucks. 3. Subtract your loaded weight from the maximum GCWR in the chart. This is the maximum trailer weight your vehicle can tow. It must be below the maximum trailer weight shown in the chart. TRAILER TOWING Your vehicle may tow a class I, II, III or IV trailer provided the maximum trailer weight is less than or equal to the maximum trailer weight listed for your engine and rear axle ratio on the following charts. If your vehicle is not equipped with a heavy-duty trailer towing package, the maximum weight your vehicle can tow is limited to 5,000 lbs. (2,268 kg) 179 2004 F150 (f12) Owners Guide (post-2002-fmt) USA English (fus)