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UMI Performance adjustable upper control arms for 1968–1972 GM A-body let you fine-tune pinion angle with on-car adjustability and robust 4140 chrome-moly components. CNC-machined 0.250" steel mounting plates, 4140 threaded tube adapters and a heat-treated 1.000" chrome-moly adjuster provide precision and strength. Fluted greaseable polyurethane bushings and CNC-machined aluminum step bushings reduce deflection, improving traction and helping to limit wheel hop on track or street applications.
UMI Performance 68-72 GM A-Body Adjustable Upper Control Arms- Poly Bushings
