QuadBoss 2004 Arctic Cat 300 4x4 Front Differential Bearing & Seal KitKit contains all of the bearings and seals required to service an ATV differential. This Part Fits: Year Make Model Submodel 2004 Arctic Cat 300 4x4 Base 2010 2011 Arctic Cat 366 4x4 Auto SE Base 2004 Arctic Cat 400 2x4 Auto Base 2004 2007 Arctic Cat 400 4x4 Base 2004 2008 Arctic Cat 400 4x4 Auto Base 2004 2006 Arctic Cat 400 4x4 Auto TBX Base 2004 2006 Arctic Cat 500 4x4 Auto TBX Base 2004 2006,2008 Arctic Cat 500 4x4 Auto TRV Base 2013 2014 Arctic