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UMI front lower A‑arms with polyurethane bushings for 1970–1981 GM F‑Body (and 1978–1996 B‑Body) upgrade steering feel and straight‑line stability. Built from 1.500" USA DOM steel with chromoly offset cross shafts and a heavy spring bucket, they accept factory or hybrid coils like Viking and QA1. Greaseable poly bushings, premium ball joints and swivel sway bar mounts balance crisp response with ride comfort.
UMI Performance 70-81 GM F-Body Front Lower A-arms Polyurethane Bushings
