I have searched this and cant find anything. I cannot figure out where to fill the front diff oil im my 02 sportsman. I found the drain and a vent hose off the top. The manual says there is no way to check the level in you should drain the oil then fill with the recommended amount of new oil but says nothing about where to put it in. Silly question I know but any help would be appreciated.

 

on the left side there is a big allen head bolt. That is where u fill it up.

 

Found it, mine is on the right side on the rear of it near where the driveshaft comes out. It was hidden behind a radiator hose.