SuperATV’s Rhino X300 Axle CV Kits for Polaris vehicles are made with the same unbeatable TPEE boots and chromoly and 300M components that make your X300 Axles strong. So if manage to do the impossible and break your X300 CV outside our 3-year warranty, you can get the same awesome CV your original axle came with. This kit comes with everything you need to replace one CV joint, including the CV joint, boot, bands, and grease.