Not willing to accept the factory rake of your Super Duty pickup, but still need to actually use it as a truck? Kelderman Air Suspension Systems has developed a 4-6″ lift kit for the 2011+ Super Duty Pickup platform to get your truck up in the air without losing it’s usability. By removing the rear leaf springs of the truck, a Kelderman 4-Link Rear Air Suspension allows for the rear of the truck to ride entirely on air suspension. By placing an industrial size air bag above the rear axle and betwen the factory frame, the 4-LInk Rear system will improve the ride and carrying capacity of your truck. This system includes trailing arms, forward mounting side plates, upper and lower bag plates, pan hard bar, crossmember, and an upgraded rear sway bar w/ end links. Add this kit to the rear of your Super Duty by itself to improve the ride and towing or add our 4-6″ front kit to it to have a full air suspension on your truck! The 4-6″ lift kit is capable of lowering down to approximately a 1″ lift to make it easy to climb in and out of the truck, hook up to trailers, or just to show off what your truck can do! When fully inflated to 4-6″ kit becomes a towering 10″ lift! You never thought you could have a lifted truck that was this comfortable to drive and this capable for towing & hauling! Make your Super Duty the ultimate work truck with an unbelievable ride quality. e the envy of the all truck owners by getting your full 4-6″ Air Suspension kit from Kelderman Air Suspension today!