QuadBoss 08-10 Polaris Outlaw 450 Lower 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 2007 2018 Can Am DS 250 Base 2008 2010 Polaris Outlaw 450 MXR Base 2006 2007 Polaris Outlaw 500 Base 2007 2011 Polaris Outlaw 525 IRS Base 2008