The UMI adjustable upper a‑arm for 2nd‑gen F‑Body and 1978–1996 B‑Body cars delivers added caster and straightforward camber/caster tuning. Built from tubular steel with a 4140 CrMo cross shaft and 1.250" USA DOM tubing, the shorter design reduces shim needs for racing alignments. Rod ends minimize stiction, and the arms install as a direct bolt‑in for 1970–1981 F‑Body and 1978–1996 B‑Body applications.
UMI Performance 70-81 GM F-Body Upper A-arms Front Adjustable