1997 Ford Aerostar Owner's Manual - Page 179

u Do not let the added driving traction of E-4WD lead you to believe that you can stop any quicker than a conventional two-wheel drive vehicle. The added traction performance does not improve the braking ability of the E-4WD vehicle. Allow the same amount of distance when braking as with a two-wheel drive vehicle. RWARNING Your E-4WD Aerostar is a passenger vehicle designed for on-road use; it is not intended for any off-road use. RWARNING On-vehicle wheel balancing will cause damage to the drivetrain of E-4WD Aerostars. Driving With a Heavy Load There are limits to the amount of weight your vehicle can carry or tow. The total weight of your vehicle, plus the weight of the passengers and cargo, should never be more than the Gross Vehicle Weight Rating (GVWR). Also, the weight that your vehicle carries over the front axle and rear axle should never be more than the Gross Axle Weight Rating (GAWR) for the respective axle. The weight limits of your vehicle's tires affect the GVWR or GAWR limitations. Usage of replacement tires with higher weight limits than originals does not increase GVWR or GAWR. Usage of lower capacity replacement tires may lower GVWR and GAWR limitations. 179