The Stemco Double Lock King Pin Kit is designed to provide superior vehicle handling and performance. This kit is intended to survive a lot of use and difficult circumstances, minimizing delay during repairs or replacement. The kit includes pre-sized bi-metal bronze bushings as an alternative to installing a reamed king pin. The bushings are self-cleaning, removing particles to delay wear. The kit also includes hardened lock pins that reduce axle damage and improve performance. FleetPride is your First Click in Heavy Duty®.