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UMI Performance's fully boxed lower and adjustable upper rear control arm kit for 1978–1988 GM G-Body provides a bulletproof rear suspension upgrade for street, strip or cornering use. Boxed lowers use 3" x 1-1/2" rectangular tubing with CNC-machined radius ends and capped radius ends for a factory look; uppers feature on-car CrMo adjusters and Teflon-lined rod ends. Greaseable polyurethane bushings, CNC precision machining, heavy-duty hardware and powder-coat finish complete this USA-made package that installs in roughly two hours.
UMI Performance 78-88 GM G-Body Rear Control Arm Kit Fully Boxed Lowers Adjustable Uppers
