BMR non-adjustable polyurethane lower control arms (UTCA021) for TrailBlazer SS and SSR in red use heavy-duty DOM tubing and greasable, fluted 95-durometer bushings to keep lubrication at the thrust surface. They retain factory air-ride mounting, include a stud for the ride-height sensor, and are intended to reduce arm flex for improved repeatability in street, drag, or road race uses; install time is typically 1–2 hours.
BMR 02-10 SSR Non-Adj. Upper Control Arms (Polyurethane) - Red