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F5451K3 – 4 in. Suspension Lift Kit with Front Coils and Rear Blocks

4 in. Lift Kit With Front Coil Springs, Track Bar Bracket, Steering Stabilizer, Sway Bar End Links, Brake Lines, Bump Stop Spacers, Radius Arm Brackets, Rear Blocks, U-bolts.
Does Not Fit Models With Gas Engine.
Part # FA450 Pitman Arm Is Required.
If Equipped With Rear Sway Bar, Order Extended End Links Part # SBE404.

Starting At: From: $1,309.31

California Residents
WARNING: Cancer and/or other Reproductive Harm.

SKU: F5451K3 Category:


Lift Height

4 in.

Kit Note

Does Not Fit Models With Gas Engine., If Equipped With Rear Sway Bar, Order Extended End Links Part # SBE404., If Equipped With Sterling Rear Axle, Order Rear U-bolt Kit Part # U9B16R., Part # FA450 Pitman Arm Is Required.

Max Tire Size



17-20 x 9


5 in.

Up your control and raise your Super Duty's off-road performance abilities. Gain ride height and improved ride quality with this 4-inch lift. Get some aggressive 35's off-road tires for more ground clearance to work hard and play harder.

Specifically engineered for Super Duty F350 4WD Diesel motors, these 2-Stage Variable Rate Springs deliver a smooth controlled comfortable ride.

First Flex Rate stage delivers a comfortable ride with the ability to flex/expand during full articulation as the suspension drops (full droop). Second Ride Rate stage only engages after compression past Flex Rate: resulting in a smoother ride.

Radius arm drop brackets lower the OEM radius arms mounts at the frame to maintain the correct caster specifications for proper alignment. An ultra heavy-duty track bar relocation bracket captures the front crossmember on both sides to prevent movement in this critical high-stress area and to keep the axle centered.

The sway bar links realign the front sway bar working angle to achieve maximum sway control. Drop spacers reposition the front bump stops. Front brake line brackets and braided stainless steel brake lines correct and reposition the brake lines. A heavy-duty steering stabilizer relocation bracket corrects and enforces the stabilizer connection. Hydro steering stabilizer included.

A 3.5-inch rear block and U-bolt kit delivers a more level stance. Carrier bearing lowering kit corrects driveline angles to eliminate driveshaft vibrations.

Shocks are a key link in-between the chassis and your suspension. Front and rear damper capacity enhanced with ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shocks. ADX 2.0 has a race-inspired full-displaced valving system. Nitrogen charged with Internal Floating Piston Technology = Quickest Shock Reaction Time Ever.

Together this complete kit maintains the factory geometry angles, alignment specifications and structural strength.

Does Not Fit Models With Gas Engine.
Part # FA450 Pitman Arm Is Required.
If Equipped With Rear Sway Bar, Order Extended End Links Part # SBE404.


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YearMakeModelFitment Info
2007FordF-350 Super Duty - 4WD DIESEL--
2006FordF-350 Super Duty - 4WD DIESEL--
2005FordF-350 Super Duty - 4WD DIESEL--
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