Equip your truck to be Ready for the Road Ahead , with the Jost 6" JSK37U Series Left-Hand Stationary Manual Standard Fifth Wheel Assembly, a crucial piece that provides improved fifth wheel coupling. By utilizing efficient engineering, this replacement piece is able to help ease the process of attaching a fifth wheel to a truck while maintaining safety. Built with a tight design to minimize sliding and vibration. FleetPride is your First Click in Heavy Duty .