Fits both positions of the rear drive shaft (as pictured): 2007-2012 Big Bear 400 IRS, 2007-2011 Grizzly 350 IRS, 2007-2008 Grizzly 400, 2007-2014 Grizzly 450, 2005-2006 Kodiak 400 4WD, 2003-2006 Kodiak 450 4WD * Bearing Diameter 0.789 in, Stack up dimension 1.581 in, Cross Span 2.007 in, Inside snap rings thickness 0.058 in * Replaces OEM # 5GT-46187-00-00 spider, 93399-99948-00 bearing, 93440-20088-00 clips.