ADDCO anti-sway bars reduce body roll and understeer resulting in a safer, more balanced suspension. Bolt-in sway bars are a direct replacement for thin, weak factory bars. Made from hardened & stress-relieved high carbon steel with a forged & countersunk eyelets. Hardware includes heat treated 5,000 lb. end-link bolts, zinc chromate coated brackets, double beveled urethane bushings and plated, cupped washers.