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The SuperPro shackle bushing set stabilizes leaf spring movement to control rear axle motion in 4WDs, helping prevent rear-end wander and instability when towing or carrying loads. Intended for 1962–1978 FJ40–42 shackle applications, these polyurethane replacements withstand heavier loads than OE rubber and keep the axle tracking true under demanding conditions.
SuperPro 62-78 FJ 40-42 Shackle Bushing
