Outfit your semi to be Ready for the Road Ahead with reduced vibration and component wear, with the Atro 6.75" Center Bushing Kit. With a specialized design that nestles between moving and stationary elements, this suspension piece minimizes movement while decreasing mechanical wear-and-tear. Manufactured with heat-resistant polyurethane for boosted durability, increased life expectancy, and better vehicle control. FleetPride is your First Click in Heavy Duty .