Up to 1,000 pounds of leveling capacity* Air springs fully adjustable from 5-35 PSI on most applications, helping to level the vehicle when towing or hauling a heavy load for a safe, comfortable ride No frame drilling required Eliminate sag and bottoming out Rugged durable components including air springs and all hardware Air bags easily fit into the coil springs of coil-sprung vehicles, the most versatile of Air Lift's applications† Features Air Lift's Lifetime Warranty, with a 60 Day Ride Satisfaction Guarantee *Do not exceed the manufacturer's gross vehicle weight rating.