1996 Ford Windstar Owner's Manual - Page 254

The rating is based on the carrying capacity of the weakest axle and suspension component as well as other factors. This is why it is so important to observe vehicle loading ratings. Overloading a vehicle punishes components and can lead to shortened service life or outright failure. The weakest link in the suspension system defines the GAWR, and may be the tires. Tires are rated to carry a specific maximum load at a specific tire pressure. When passenger car tires are installed on light trucks and multipurpose passenger vehicles, they are rated at a 10% lower load carrying capacity due to the differences in vehicle usages. With the tires inflated to the specified pressure, the total weight of your vehicle must not exceed the GVWR and GAWR specified on the Safety Compliance Certification Label. This includes full fuel tank(s), vehicle equipment, and occupants, as well as the cargo load. Gross Combined Weight Rating (GCWR) The GCWR is the maximum allowable weight of the towing vehicle and the loaded trailer (including all cargo and passengers). 252