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UMI Performance 1978-1988 GM G-Body Rear Control Arm Kit, Fully Boxed Lowers, Adjustable Uppers
  • SKU: 790-302117

UMI Performance 1978-1988 GM G-Body Rear Control Arm Kit, Fully Boxed Lowers, Adjustable Uppers

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UMI’s rear control arm kit is a bulletproof addition to your car. Suitable for street, strip or corner carving, this kit minimizes suspension deflection for a crisp handling setup and less wheel hop. Kit includes UMI’s premium fully boxed lower control arms designed to offer a factory look while still providing enhanced performance to the vehicle. The fully boxed lower control arms are built from larger 3” x 1-1/2” rectangular tubing and feature CNC machined radius ends and reinforced sway bar holes. Boxed control arms include fully capped radius ends to prevent debris from entering to arm while offering the factory look to your classic. The heavy duty upper control arms feature on car adjustment using heavy duty chromoly adjusters and Telfon lined rod ends. The premium rod ends work as a solid bushing control arm with suspension articulation, designed for harder launches and less friction. Upper control arms feature heavy duty ¼” thick laser cut mounting pads designed to work on all rear end housings. UMI’s control arms are CNC machined for accuracy and assembled with high quality greaseable polyurethane bushings.


  • 1/8” wall mild steel tubing
  • Fully boxed design uses nicely capped ends to maintain factory look
  • CNC machined for accuracy and consistency
  • MIG welded heavy duty bushing holders
  • Chromoly and zinc plated heavy duty on car adjuster
  • Heavy duty ¾” chromoly Teflon lined rod ends
  • CNC laser cut ¼” upper mounting pad
  • Greaseable polyurethane bushings with zinc plated steel sleeves
  • Durable and long lasting powder coat finish
  • Made in Philipsburg, PA – USA

Installation: Item installs in approximately 2 hours using basic hand tools.

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