RacerX Rear Upper Control Arms (RUCA) - 22+ GR86 / BRZ

The Racer X Fabrication rear upper control arms are the best option for adjusting camber on the rear of your vehicle. The pivot point allows for minimal impact during camber adjustment. The tubular design allows for a weight savings of 4 lbs per control arm (8 lbs of total weight reduction), by far one of the largest weight savings for suspension components. The RUCA use urethane bushings with zinc plated steel inserts to reduce movement and increase response.
  • RacerX RUCA
  • Constructed of 4130 chromoly steel
  • Total weight reduction of 8 lbs
  • CNC machined stud to OEM specification
  • TIG Welded
  • Adjustable for camber correction
  • Designed for racing
  • Black zinc plating for corrosion resistance
  • Made in the USA, at Racer X Fabrication


  • 2022+ Toyota GR86 / Subaru BRZ, ZN8 + ZD8


Rear upper control arm is pre-assembled with the following components:

  • (2) 4130 Chromoly upper control arms
  • (4) Urethane bushings
  • (2) Rod ends
  • (2) 2 CNC machined studs
  • (2) 1/2" bolts for studs

Photos used for marketing purposes only. Actual product may vary.

NOTE: System Motorsports is the industry-leading recognized authorized RacerX Fabrication dealer and distributor in the US. All RacerX products we procure, source, and sell are manufactured and imported from RacerX directly. Please do not purchase replica / imitation products - your safety is our concern!

For all product inquiries and questions - please contact us directly!