Air Lift Company has been developing air spring suspension products for more than 50 years. The original product, a rubber air spring inserted into a car's factory coil spring, was developed and patented in 1950. Air Lift products can be engineered to fit almost any coil or leaf spring suspension. Air Lift has applications developed for passenger cars, light trucks, motorhomes, race cars, street rods, military vehicles and specialty vehicles of all types. Air Lift suspension kits are an easy way to lower or raise your vehicle and maintain or increase the performance of your suspension system. Air Lift customers use suspension products to increase payload, lift 4x4 trucks up and drop any number of vehicles down as low as you want to go!