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UMI Ultimate adjustable rear upper control arms for 1978–1996 GM B-Body applications combine 4140 Chrome Moly construction, TIG-welded strength and QA1 Teflon-lined spherical rod ends for quiet, bind-free movement. The Chrome Moly on-car adjuster lets you lengthen or shorten the arm while mounted to tune pinion angle, improving 60-foot times, traction and reducing wheel hop for track and autocross settings.
UMI Performance 78-96 GM B-Body Adjustable Upper Control Arms- Ultimate Arms
