Fits front left (driver side) on the following Polaris ATV models: 2003-2007 Vinson 500 (both LT-A500F Automatic & LF-F500F Manual). Features a 4140 chromoly steel bar for a higher tensile strenth and more durability. Engineered as a direct replacement, fully-assembled, and ready to install. Joints fitted with neoprene CV boots for flexibility and resistance to hot/cold temperatures. Utilizes high-performance moly grease for protection against the environment and to keep vital components lubricated. Replaces OEM # 54902-03G10, 54902-03G20, 54902-03G22. Inner splines: 20, Outer splines: 20, Compressed length: 486 mm. Warranty: 2 Years (excluding torn boots & use on lifted vehicles). Lift kit voids warranty, parts are not designed to be used on modified suspensions. Fits front left (driver's side) on the 2003-2007 Vinson 500 4x4 * Features a stronger than OEM chromoly hardened steel axle bar * Greased with a moly based grease to provide superior joint lubrication * Fitted with neoprene CV boots for added wear and puncture resistance.