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The UMI Ultimate on-car adjustable upper control arm for 1964–1967 GM A-body applications offers robust 4140 chromoly hardware, CNC machined components and Teflon-lined spherical rod ends for smooth articulation. On-car adjustability makes pinion angle correction and length changes straightforward, improving traction and launch consistency. Finished in durable powder coat and precision machined for reliable fitment.
UMI Performance 64-67 GM A-Body Adjustable Upper Control Arms - Ultimate Arms
