1996 Ford F150 Owner's Manual - Page 217

Do not tow a trailer until your vehicle has been driven at least 500 miles (800 km). Vehicle Loading/Towing Information Your vehicle's load capacity is designated by weight, not volume, so you cannot necessarily use all available space with large or heavy loads. Maximum safe vehicle weights as well as tire, rim sizes and inflation pressures are specified for your vehicle at the assembly plant on the Safety Compliance Certification Label. The Certification Label is located on the left front door lock facing or the door latch post pillar. Trucks, unlike passenger cars, are basically custom vehicles designed to carry a load. Most owners start with a base vehicle and add production and dealer installed and/or aftermarket components to suit their tastes and purposes. Even trucks that are purchased for personal transportation only are likely to have considerable optional equipment, such as step bumpers and light bars, for example. RWARNING Passengers should not be allowed to ride in the cargo area. Persons not riding in a seat with a fastened seat belt are much more likely to suffer serious injury in a collision. Cargo should always be secured to prevent it from shifting and causing damage to the vehicle or harm to passengers. Each additional item of equipment affects how much cargo a vehicle can carry. If a vehicle is overloaded, performance will suffer and service concerns may arise. 215