Restore load carrying capacity and eliminate bottoming out by adding SlamAir air helper springs to your lowered vehicle. SlamAir kits supplement a lowered truck's leaf springs to provide adjustable spring rate for ride comfort, safety and variable loads. Easy to install between your existing springs and the vehicle frame, they are made with rugged, durable components for long, reliable service. Air Lift SlamAir kits fit most lowered trucks with a 2 - - 6 inch drop, including trucks with flipped axles and notched frames. SlamAir air helper springs are air adjustable from 5 to 100 PSI and come with quick connecting, easy - to - use air fittings. They also come standard with a limited lifetime warranty and an exclusive 60 day ride satisfaction guarantee.