I bought a set for an FX24D from Sheaffer's town & Country. I know Hoye carries ring and pinions for some models. 403 ForbiddenYanmar Tractor Parts
Just something to ponder. If you order parts before you tear down you have the possibility of finding deeper needs once you get in there. You could still move it around with the hydraulic casing off. Probably will have to remove at least one axle to change ring and pinion though.
I attached a thread in post #22 where I changed one out on an FX24D back in 2013. Yours looks almost a spitting image. I believe you will have to remove the axle housings. They will come off as one piece. The axle shaft goes into the carrier. Here is one picture showing the likeness.
Thanks Winston! Yes that looks like the same set up. I'll pull the ring out this week and take a look at it. Where did you find your gear at? Finding parts seems to be the problem. Also how did you make the gaskets for putting it back together?
ring and pinion are sold as set. Probably not suppose to do it but I only changed the ring gear. I did blue and check the tooth contact and so far as I know GWsmith is still using his tractor.