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UMI’s adjustable rear upper control arm for 1968–1972 GM A‑Body applications is a heavy-duty bolt-in replacement that sharpens handling and eases pinion-angle tuning. Greaseable polyurethane bushings and a UMI CrMo on-car adjuster reduce suspension deflection and wheel hop. Built with 1/4" CNC laser-cut mounting pads, a mix of TIG and MIG welds and a durable powder coat, it installs in about 1–2 hours in Philipsburg, PA.
UMI Performance 68-72 GM A-Body Adjustable Upper Control Arms- Poly Bushings
