+2″ 4-Link Rear Air Suspension:
(Part # 10006647)
Lifting your truck shouldn’t mean that it has to be any less of a truck. You don’t want to roll around with a stock truck, but you still have trailers that you need to haul. You want to go camping on weekends, boating in the summer, and snowmobiling in the winter. Whatever your hobbies are or whatever trailers you use your truck to pull, make sure the suspension is up to the job. Our Kelderman 2″ 4-Link Rear Air Suspension Lift Kit provides the best ride quality and towing available for stock trucks and lifted trucks. This kit takes your leaf spring suspension and just throws it away. Air suspension is able to provide you with the ride quality and towing that you have always wanted from your lifted truck. Our kit includes trailing arm mounts, adjustable trailing arms, airbags, upper and lower airbag mounting plates, axle clamps, rear cross member, adjustable panhard bar, upgraded rear sway bar, and sway bar end links. Shock and air control systems are sold separately.
Optional Air Control Systems:
The base version of this rear air suspension system will be in a ‘manual fill’ package. This provides you with the necessary amount of air line, fittings, and Schrader valves to inflate and deflate the suspension like you would a tire. Several air control systems are available, so let’s go through some popular options.
Mechanical, Self-Leveling Air Control System (Part # SLKD2WD + HCVLK’s):
This is the most common air control system for any and all of our full air suspension products. It includes a 100% duty cycle VIAIR air compressor, a 3-gallon air tank, two mechanical height control valves, height control valve linkages, (2) dump valves, an air dryer, plus all wiring, fittings, and connections for installation. The air compressor is contained within a weather-resistant enclosure to protect the vital elements of the control system.
An in-cab control panel is provided, allowing you to control the ON/OFF power to the air compressor and a dump switch to activate the rear dump valve option. You can also use your factory auxiliary/upfitter switch panel for these two switches in place of the Kelderman control panel. This configuration allows the suspension to automatically adjust the pressure within the airbags to maintain the designed ‘ride height’ of the suspension. As soon as you hook up to a trailer, the mechanical height control valves move with the suspension’s adjustment and pull air from the onboard air tank to inflate back to the ‘ride height’ position. It will also manually bleed off air pressure when you’re unloading weight, unhooking a trailer, etc. The dump valves are designed for use with the rear air suspension and allow you to flip a switch, deflate the rear suspension down approximately 4″, and pull right out from under your trailer. The onboard air dryer removes moisture from the system periodically to prevent damage to components and remain operational in cold temperatures and climates.
Mechanical, Self-Leveling Air Control System – Dual Compressor & Tank (Part # 30664 + HCVLK’s):
Want more air for your air suspension? This air control system is identical to the system referenced above, but with an additional air compressor and air tank. We tend to see this more with serious work truck applications, fleet use, trucks running at MAX GVWR, or those that plan to regularly raise & lower the rear air suspension. The additional air compressor and tank provide a quicker recovery time and make sure plenty of air is available for raising & lowering the suspension and any necessary ride height adjustments.
NOTE: The installation of this kit with the optional Mechanical, Self-Leveling Air Control System may require the removal of the factory spare tire.
