QuadBoss 94-95 Polaris 300 2x4 (02) Upper Ball Joint KitPut an end to premature ball joint failure by upgrading from the O. E. M. aluminum joint to a heavy duty steel joint. QuadBoss Ball Joint Kits are also a great replacement for applications that would normally require you to buy an expensive A arm or steering knuckle. This Part Fits: Year Make Model Submodel 1994 1995 Polaris 300 2x4 Base 1994 1995 Polaris 300 4x4 Base 1994 1995 Polaris 400L 2x4 Base 1994 Polaris 400L 4x4 Base 2017 2019 Polaris ACE 500