I was curious if anyone has ever had to change the vertically mounted trans cooling fan for a 165/175 hydrostatic transmission (Eaton). I just realized that the mower I've used on and off for the past year was missing every single cooling fin on the trans cooling fan. Ugh, could have been a disaster some day but trans still runs strong though. The fan is on the back right of the mower and pretty close to the frame. Does the transmission need to be removed or can a ratcheting wrench w/short socket do the trick? Reason I haven't attempted yet is because the whole top of the tractor needs removed for access and that's a tough 1 person job. Cooling fan is part ET17698 Any help is appreciated, thanks.