Airmaxxx Air Over Load Tow Assist Kit. Fits: 1973 – 1979 Ford F-250 3/4 ton Pickups With 8 Lugs. Provides Up To 5000lbs Of Leveling Capacity Easily Add Or Remove Air Same As You Would A Tire. Kit Includes: 2 – Standard 2500 lb Air Springs Mounting Brackets With Hardware 1/4 D. Approved Air Line With Fittings And Schrader Valve. Professional Install Is Recommended Cutting & Drilling Is Required For Install. Want to upgrade your kit? Adds compressor and/or tank with control from inside your cab. Never exceed more than truck manufacturers maximum load recommendations.