I have a 30E A little smaller machine . Industrial TLB shuttle shift .
The transmission takes MF Permatran III. There are any number of cross over oils. Just read the can and look for Permatran III. It is not straight hydraulic oil. My machine takes almost 15 gal between transmission and rear end. This spring I will do the 1000 hr change for the first time and I never expect to do it again. I know a fair amount about the machine , yours is older I think but maybe I can help. MF ag is now owned by Agro. MF industrial is owned by Terex. The local MF ag dealer here told me he can get me any parts I need.