Looking for more comfort and control from your chassis cab truck? Whether you’re building a brush truck, RV, or off-road work vehicle, air suspension offers unmatched ride quality and load-handling capability.
Now available for 2023+ Ford F-450, F-550, and F-600 4×4 Chassis Cab trucks, this 6” Full Air Suspension Lift Kit replaces the factory coil and leaf springs with a complete air ride system. The result: a smoother ride, improved stance, and enhanced performance on and off the road.
Key Features:
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Full Air Suspension Conversion – Replaces all factory springs for maximum ride quality and load adaptability
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6” Suspension Lift – Adds ground clearance while retaining or exceeding OEM load ratings
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Tire Fitment – Built for 38” tires; clearance for up to 44” with modified fenders
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Heavy-Duty Radius Arms – Fabricated radius arm upgrade included for strength and alignment
- Unmatched Ride Quality – No more rough spring ride. Experience the comfort of air suspension
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PSC Steering Assist Compatible – Designed to work with PSC SK756 Hydraulic Steering Assist (purchased directly from PSC)
- Increased Capacity: Tow maximum capacity in a safer and more comfortable way with full air ride
Optional Add-On:
Air Lift 3H Electronic Control System
Add the Air Lift 3H system to unlock approximately 4 inches of vertical adjustment above or below the ride height setting—ideal for:
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Leveling when camping or parked on uneven terrain
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Lowering ride height for easier entry/exit or trailer hook-up
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Improving work truck ergonomics with a lower working height
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Automatic ride leveling under uneven loads—perfect for service trucks, cranes, or off-center RV builds
Optional Add-On:
Mechanical Self-Leveling Air Control System (Dual Compressor)
For those looking for a rugged, low-maintenance solution, Kelderman’s mechanical self-leveling system uses height control valves and dual compressors to automatically maintain ride height under changing load conditions, without the need for electronics.
This setup is ideal for:
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Heavy-duty work trucks and fleet vehicles need reliability in harsh environments
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Service bodies, crane trucks, or utility beds with shifting loads
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Simple hands-off operation with automatic leveling as you load or unload cargo
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Reliable on-board air supply thanks to the dual compressor configuration
It’s a great option when you need consistent ride height and load handling, but not the possibility of adjustments of electronic controls.
Whether you’re outfitting for convenience, safety, or flexibility, the 3H system takes your suspension to the next level.
NOTE: Base price includes the 6″ Front Air Suspension Lift Kit, 4-Link Rear Air Suspension Lift Kit, and radius arm upgrade. Air control systems (like the Air Lift 3H) are optional add-ons. Front-only and rear-only kits are also available.
