Ensure your truck is Ready for the Road Ahead™ with an efficient seal around the axle shaft, with the National 5.75" ID 8-Bolt Laminate Steel Core Axle Flange Gasket. To prevent fluid leaks this component tightly seals the area around the axle shaft, while also stopping contaminants from entering the axle assembly. Fashioned with durable materials to tolerate wear and tear from everyday use. FleetPride is your First Click in Heavy Duty®.