Eliminate "bottoming out" and improve ride, handling and stability. The Air Lift 1000 kits are engineered as an add-on helper spring for coil spring suspensions, front or rear. Custom tune the ride you want, whether you're hauling, towing or riding light! Made with tough, long-lasting molded polyurethane. * Fits open coil springs, front or rear. * Up to 1,000 pounds of leveling capacity. * Reduces roll, sway and "bottoming out."