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, providing increased strength, stability, and control for the Super Duty platform.
At the core of this system are Fabtech’s legendary tubular radius arms. Developed from extensive off-road racing experience, the redesigned tubular construction delivers exceptional strength while maintaining a smooth and compliant ride. 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 running oversized tires. The track bar is 4 inches longer than stock and mounted with a heavy-duty 1/4-inch thick offset frame bracket, helping keep the track bar and drag link closer to parallel to reduce steering push and bump steer. This design allows full steering lock with 15.50-inch wide tires on 4 3/4-inch backspace wheels.
The system includes Fabtech front coil springs designed for excellent ride quality both on and off road, along with Dirt Logic 2.25 stainless steel shocks that are ride tuned for oversized tires. Rear lift is achieved using a combination of add-a-leaf springs and cast iron lift blocks to maintain load capacity and ride comfort. This system also includes a free 5-year or 60,000-mile powertrain warranty.
Each Fabtech component is designed with specific features and benefits to deliver long-term durability, precise steering control, and superior suspension performance in demanding conditions.
