Ensure you're Ready for the Road Ahead , with the Jost Fifth Wheel Steel Wear Ring with Insert Piece that provides safe transport of payloads. This replacement kit is designed with steel cushion rings and high strength alloy to reduce stress on your fifth wheel, while providing a smoother ride for both truck and trailer. Crafted from corrosion-resistant alloys that have been rigorously tested and refined. FleetPride is your First Click in Heavy Duty .