i think you,ll need a factory kubota repair manual for that ,i haven't seen any break downs for the transmissions on this on line,someone else asked about this once,and the found a repair manual from kubota on it.you may wind up doing the same thing,...
check your local classifieds; check with a dealer who takes trade-ins. Check with an on-line site such as Craigslist or the auction sites for completed sales.
There are several Kubota dealers in Texas. Go to Enter your zip code and click search.