This radius arm upgrade package features tough replacement radius arms that will improve strength and ground clearance for your Super Duty. They use 1/4" boxed steel construction and utilizing large, greaseable, urethane bushings, these arms are a considerable upgrade in strength from the stock arms. The arms bolt directly into the factory mounts and position the axle for the proper caster and wheel location. The lower axle mount utilizes our popular cam lock design, making it adjustable for 2.5-6" of lift.
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