2008 Polaris 800 RZR Universal Joint [ Applies to 4x4 - Front Prop Shaft ] Heavy Duty Construction for Increased Static Strength and Longer Life Precision Ground Trunnion and Bearing Surfaces Insure Trouble-Free Operation Easy to Lube During Fitting and During the Re-Lube Cycle Refer to the Diagram Above Located in the Product Photos. This Product Applies to the 4x4 - Front Prop Shaft Located at Arrow(s): 1,3 Compatibility: 2008 Polaris 800 RZR