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The UMI Performance adjustable rear upper control arm for 1959–1964 GM B-Body applications replaces worn factory arms to reduce wheel hop and improve cornering and track consistency. Its on-car 4140 Chromoly adjuster allows pinion angle changes without removal. Built with grease-able polyurethane bushings, TIG welds, Chromoly tube adaptors and a durable powder coat. Sold each; confirm whether you need one or two arms.
UMI Performance 59-64 GM B-Body Adjustable Upper Control/Trailing Arm inBanana Arminin
