Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The UMI Corner Max tubular lower a‑arm (P/N 4062) is a coilover‑only upgrade for 1964–1972 GM A‑Body cars engineered for serious handling. A removable lower mounting system allows spring changes without separating ball joints, the lower ball joint is relocated to add up to 4 degrees of caster, and Delrin bushings plus double‑shear mounts accept ½" rod‑end shocks and improve camber curve and roll‑center for more front grip.
UMI Performance 64-72 GM A-Body Tubular Lower Front A-Arms Corner Max Standard Ball Joint
