Air Lift adjustable air helper springs level your load and give your truck van or SUV a safer more comfortable ride. Air springs are easy to install inside the existing coil spring with common mechanic's tools. Just add air when towing or hauling a heavy load and reduce air pressure when unloaded they are fully adjustable for a great ride. Air Lift air springs eliminate sag sway and bottoming out. They are made with rugged durable components for long reliable service. Air Lift 1000 kits fit many popular customer vehicles with coil springs. They're designed to: add support to rear springs on many popular SUVs replace OEM front air springs on P-30 motor homes provide front end support for snowplows winches etc. improve muscle car traction for drag racing and improve ride and handling for full-size vans and trucks with front coil springs. Air adjustable with quick connecting easy-to-use air fittings Air Lift 1000 air helper springs have a typical max pressure of 35 PSI on cars and SUVs and 90 PSI on motorhomes. They also have up to 1000 pounds of leveling capacity right up to the manufacturer's recommended Gross Vehicle Weight Rating. Air Lift 1000 kits also come standard with a limited lifetime warranty and an exclusive 60 day ride satisfaction guarantee.