BMR 02-10 SSR Non-Adj. Upper Control Arms (Polyurethane) - RedLaunching harder, reducing wheel hop, and adding cornering consistency to your 2003 2009 Trailblazer SS or SSR is easy with upper control arms from BMR Suspension. Stock control arms with soft rubber bushings deflect under load and absorb power instead of transferring it to the tires. BMRs polyurethane, non adjustable tubular control arms for Trailblazer SS and SSR (UTCA021) are manufactured from heavy duty 1 5 8 inch, 0. 120 inch wall DOM steel