Fluid change rear axle g16e
 

Hello all,
I have a 2001 Yamaha g16e that I am “restoring” I want to change the fluid in the rear end but I can not find anywhere for my model how exactly to do that. The diff cover faces the ground unlike many other newer carts I see and I do not see any sort of plugs I can remove or anything other than a rubber plug in the diff cover itself. Do you have to drop the axle and pull the cover to drain it and then refill correctly? I’m sure I could drain it easily in its current vertical orientation however I do not think that I could get the correct amount back in once drained. Any and all help would be great!