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The Superpro rear spring shackle bushing set for Ford F100 4x4 applications stabilizes the leaf spring mounting and prevents solid-axle movement that causes wandering and instability. Upgrading rubber bushings to polyurethane helps maintain axle position under load, improving braking stability when towing or carrying heavy loads. These bushings restore predictable handling and better control for 4WD duty.
SuperPro Ford F100 4X4 Rear Spring Shac
