The Air Lift 1000 adjustable air springs are engineered for open coil spring suspensions, front or rear. Air Lift’s most versatile air springs provide up to 1,000 lbs. of load-leveling capacity for cars, SUVs, minivans, and motorhomes. These are adjustable from 5-35 PSI and help stabilize your ride, improving and eliminating trailer sway, vehicle squat, and bottoming out.