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UMI's Corner Max tubular lower a‑arm P/N 4062‑1 is a coilover‑style upgrade for 1964–1972 GM A‑Body cars that moves the lower ball joint forward for up to 4 degrees of caster and ships with premium Howe +3/4" tall ball joints. It features Delrin bushings, double‑shear coilover and sway‑bar mounts, accepts ½" rod‑end shocks, and can achieve up to 10 degrees of caster when paired with UMI 2656‑1.
UMI Performance 64-72 GM A-Body Tubular Lower Front A-Arms Corner Max Tall Ball Joint
