Order Includes: 1x Complete Rear Differential Compatible With Yamaha: Grizzly 660 Yfm660f 4wd 2002-2008, Grizzly 660 Yfm660f 4wd Hardwoods Hunter Edition 2003-2006, Grizzly 660 Yfm660f 4wd Hunter Edition 2002-2008, Grizzly 660 Yfm660f 4wd Wetlands Hunter Edition 2003-2005, Grizzly 660 Yfm660fa 4wd Special Edition 2005-2006 Part Numbers: 5KM-46101-12-00, 5KM-46101-11-00, 5KM-46101-10-00, 5KM-46101-00-00 Dimensions: Length: 282 mm - 11.1 in, Width: 189.5 mm - 7.46 in, Height: 143.8 mm - 5.66 in We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced. Brand Caltric Manufacturer Caltric Manufacturer Part Number DI102/5 Is Discontinued By Manufacturer No