Firestone "Coil-Rite" air bag helper springs are designed to fit inside the existing coil spring suspension creating a variable rate spring. These air bags are made of durable, elastic polyurethane providing years of comfort and stability to your vehicle. "Coil-Rite" air bags enable adjustment for varying loads and road conditions by inflating or deflating the springs. Performance can be altered as easily as inflating a tire. Installed between the frame of the vehicle and the suspension providing load support through the use of air pressure.
1. *Do NOT exceed the vehicles Recommended Gross Vehicle Weight Rating (GVWR)
|Download Instructions:||4100 Instructions|
|Part 4100 fits:||1989-1991 Chevy Suburban|
2008-2016 Ford F250 4wd & 2wd (all cabs) - Daystar Polyurethane Body Mounts (includes hardware & sleeves) - Black