BMR 78-87 G-Body Non-Adj. Boxed Lower Control Arms (Polyurethane) - Black HammertoneFits all 1978 1987 GM G bodies; MIG welded 1 ? x3 inch rectangular steel tubing; Dramatically reduces control arms flexs; 95 durometer internally fluted polyurethane greasable bushings; Zinc coated bushing sleeves; Greatly reduces bushing deflection; Improved Performance with acceptable NVH levels; Designed for street performance, drag race, and road race applications; Durable powdercoat finish; 1 2 hour installation time; Proudly designed in the U.