Fits 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.S.A.;Proudly made in the U.S.A.