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UMI polyurethane leaf spring shackle kit fits 1970–1981 F-Body rear leaf springs and includes polyurethane bushings for both leaf and chassis sides, Grade 8 hardware and laser-cut shackles. Made in the USA, the kit improves ride quality and suspension responsiveness compared with worn rubber bushings while resisting wear. Finished in a tough gloss black powdercoat for durability and street or performance use.
UMI Performance 70-81 Polyurethane Leaf Spring Shackle Kit
