Product information updated on 2021-09-21, Manufactured by Air lift - Part Number AIR:60828HD, 2019-21 Ram 1500 4wd AirLift 1000 HD overload kit (2100 lb capacity) Does not fit 2019 Classic Models, With up to 2,100 lbs. of load-leveling capacity, Air Lift 1000 HD™ provides the greatest support of any coil-spring insert air spring available. Period., Air Lift Company's Air Lift 1000 provides up to 1,000 lbs. of load-leveling capacity. Air Lift Company's air bag kits for Sports Utility Vehicles and vans provide greater safety and comfort when you're carrying a heavy load.