2011-2016 Ford F250 & F350 Kelderman 4-6 inch Rear Air Suspension KM-| Part# F4R4

Air-Controlled 4-6" Lift

Whether you're looking for a 4-6" lift to squeeze on some bigger tires or you've heard about the legendary ride quality you get from Kelderman's air lifts and want in on the action, the Kelderman 4-6" Rear Air Suspension Lift Kit can get you the ride height you want when you want it, along with smooth-as-air ride quality both on and off the pavement. This high-quality rear lift kit replaces your rear leaf springs with an industrial size air bag that fits above the rear axle and between the factory frame to deliver unparalleled ride quality and versatility. This innovative suspension system provides the ability to easily adjust ride height to suit your preferences, whether you're looking for improved ride quality or to fit into a garage or area with lower height clearance. With Kelderman's 4-6" Rear Air Suspension Lift, you get all the benefits of air suspension with the unmistakable quality and level of customization that comes standard with every Kelderman product. This 100% US-made air suspension kit is CNC-machined in Kelderman's Iowa shop and tested to ensure flawless fit and function. Choose between different finish, body and shock options to complete your custom air lift.

Optional Air Controls Enable Adjustable Ride Height

This air suspension lift kit utilizes high-quality Firestone airbags along with lower and upper bag risers/mounts to achieve a rear lift as low as 1" and as high as 9" with optional air controls. If you'd like to be able to adjust compression and ride height, you'll need one of Kelderman's Air Control Systems, which we can easily add to your purchase if you call us at 623-434-5277. Ride height is centered right at 4-6" which is the range you'll see with no optional air controls added to your purchase. If you decide against an optional controller for now, you can still adjust the ride height manually like a regular tire with most any air compressor. This rear air suspension lift kit delivers a softer, more supple ride than traditional suspension systems without sacrificing towing capacity. This Four-Link Rear Air Suspension system will greatly improve the ride and carrying capacity of your truck. Kelderman includes trailing arms, forward mounting side plates, upper and lower bag plates, pan hard bar, crossmember, and an upgraded rear sway bar with end links. This is one of the most versatile and customizable lift kits around, so if you don't want to be tied down by your suspension system, let your 2011-2016 Super Duty glide on air with this high-quality Rear Air Suspension kit by Kelderman is your solution.

Warranty: Kelderman backs this air suspension kit with a 3-year, 100,000 mile warranty.

Note: This kit includes components for a rear air suspension lift only, it will not modify your front suspension at all. To ensure handling and ride quality is maintained, we strongly recommend you combine this kit with the Kelderman Front Air Suspension System.

Shipping: Kelderman custom builds each kit when you order it, so expect longer than usual shipping times.