I was riding my 2012 Polaris 850 and the ADC housing snapped off my diff. I have removed the diff and discovered it wrecked the splines both inside the diff and on the input shaft. Rather than buying just the gears, theres a 2010 Polaris 850 diff for sale at the same price. They look absolutely identical, and the parts reference is the exact same thing. Im trying to figure out if it would fit. There are some part numbers that are different, my only concern is maybe it has less teeth on the splines or something. If anyone knows if it will work or can spot the difference please let me know! Thanks.

 

Update: Looks like it will fit, I counted the teeth on mine vs this unit. Checks out good. Cross referenced the axle and they use the same part number. Casing and casting looks identical. It should work.