2-Stage Rear Air Suspension:
- (Part #10015261) — 10.125″ single wall frame (Ford codes 534/536) — fits factory shocks, no shocks included
- (Part #10034777) — 10.813″ double wall frame (Ford code 536 + Option 41R, F-750 only) — fits factory shocks, no shocks included
- (Part #10031638) — 10.125″ single wall frame (Ford codes 534/536) — includes Koni Shock Package (8805-1004SP1)
- (Part #10034779) — 10.813″ double wall frame (Ford code 536 + Option 41R, F-750 only) — includes Koni Shock Package (8805-1004SP1)
The Kelderman 2-Stage Rear Air Suspension is one of our oldest and most popular kits. This air suspension utilizes Kelderman’s 2-Stage Design that retains the existing leaf spring suspension for carrying capacity but allows you to give yourself an air suspension-quality ride. This kit bolts to the truck frame and attaches to the leaf spring pack once the leaf spring shackle hanger/slider has been removed. This framework allows for 4” of additional travel from the leaf springs, creating a much smoother ride for the vehicle and driver.
Our kit is compatible with a range of applications, including Ford F-650/750 chassis cab trucks. This air suspension framework would include our “manual fill” air control system with air line, fittings, and a Schrader-valve-style inflator. This would let you inflate the suspension to the proper position for the best ride quality and simply monitor it like you would your tire pressure. We offer a line of air control options, as well such as a mechanical height control valve and linkage kit to use with an onboard air control system or a full self-leveling air control system with an air compressor, tank, height control valve, dump valve, and air dryer. The standard kit includes the upper and lower air suspension framework, airbags, fittings, air line, and Schrader valve.
NOTE: There are multiple variations of this kit based on your truck’s frame configuration. F-650 trucks with a 9.125″ frame height (Ford frame codes 533 & 537) are not currently supported. For F-650 and F-750 trucks with a 10.125″ single wall frame (Ford codes 534 & 536), select Single Wall. F-750 trucks optioned with a 10.813″ double wall frame (Ford code 536 + Option 41R) require the Double Wall kit. You can confirm your frame specification via your truck’s Ford order code or by measuring the vertical web height of the frame rail.
