Designed for the 2017-2022 Ford F250/F350 4WD, Fabtech’s 8-inch Radius Arm lift kit is engineered to handle extreme on-road and off-road demands. This heavy-duty system is a complete upgrade to the factory suspension, delivering increased strength, stability, and performance for the Super Duty platform.
At the core of this system are Fabtech’s legendary redesigned tubular radius arms. Developed from extensive off-road racing experience, the tubular construction provides exceptional strength while maintaining a smooth and compliant ride for everyday driving. Updated side plates and a bold laser-cut logo give the radius arms a modern, aggressive appearance built to stand out on and off the trail.
Unique to this 8-inch system is Fabtech’s exclusive extended-length track bar, engineered to address the hyper-sensitive steering found in late-model Super Duty trucks. The track bar is 4 inches longer than stock and offset to the driver side using a stout 1/4-inch thick steel mounting bracket. This design keeps the track bar and drag link closer to parallel, reducing steering push and bump steer while allowing full steering lock with 15.50-inch wide tires on 4 3/4-inch backspace wheels.
This system includes Fabtech’s massive Dirt Logic 4.0 reservoir coilover conversion, delivering outstanding off-road damping with a controlled on-road ride. The coilovers bolt directly into the factory coil spring bucket without modification, while the large 4-inch diameter aluminum remote reservoirs are mounted horizontally above the coilovers to allow full compression travel with oversized tires.
Rear lift is achieved using a combination of add-a-leaf springs and cast iron lift blocks to maintain ride quality and load-carrying capacity. This system also includes a free 5-year or 60,000-mile powertrain warranty for added peace of mind.
Each Fabtech component is engineered with specific features and benefits to deliver precise steering control, long-term durability, and superior suspension performance in the most demanding conditions.
