HARDRACE is proud to announce the Pick up truck series arms. Our pick-up trucks control arms are well-known for high strength steel tubes with 4mm tube wall thickness, designed for the mild lift, also features our Harden Rubber Bushings which allow you to tackle tough terrain. . Pick up truck series arm . Increase caster for better ride quality . Grease nuts design for regrease it / inside the upper black boot . Super strong and durable . High strength steel tubes with 4mm tube wall thickness . CR-MO Ball Joint and special boot design, self anti-dust function . Equipped with superior harden rubber bushings . ED process and painting for the highest durability . OE direct replacement . Dramatically improving handling performance  Note: Harden Rubber Equipped 2 PCS/SET  Fits: Chevrolet Silverado 1500 1999-2006 Gmc Sierra 1500 1999-2006