57391 – AIR LIFT Helper Spring Kit, Air Spring Frame Mount Up to 5000 Pounds Of Leveling Capacity Air Adjustable From 5 To 100 PSI Rubber With Air Springs/ Brackets/ Roll Plate/ Air Lines/ Fittings/ Valves/ Heat Shield/ Installation Hardware Air Compressor Sold Separately

AIR LIFT Helper Spring Kit featuring Air Spring. Part #: AIR57391.

Features

• Eliminates Squat, Trailer Sway, Rough Ride And Bottoming Out
• Improved Braking And Steering: when All Four Tires Are Firmly On The Ground, Braking Time And Steering Are Both Improved
• Less Sway: Air Springs Increase Spring Rate And Vastly Improve Vehicle Stability
• Less Bottoming Out: Air Springs Provide Adjustable Load Support To Help Prevent Bottoming Out On Rough Roads
• Headlight Aim: Only Level And Stable Vehicles Provide Safe And Proper Headlight Aiming
• Less Porpoising: Even Heavy Pickups Which Don’t Squat When Loaded Can Begin To “porpoise” Vertically When Towing Heavy Trailers
• Adjustable Air Springs Dramatically Reduce This Problem For A Safer, More Comfortable Ride
• More Even Tire Wear: When Weight Is Evenly Distributed To All Four Tires, Tires Wear More Evenly
• LoadLifter 5000 Air Springs Fit Easily Between The Frame And The Axle To Provide Suspension Support
• Limited Lifetime Warranty