Hey Viking: one quick question. Are these single gear PTO's or double gear?
If they are single gear as I suspect then you do not need Roy's advice on the disassembly because you can only put it together one way. OK, you "could" put the gear in backwards but I assume you are not that inept since all you have to do is look at it to know. The shaft seals are available at any Chelsea/Muncie dealer and most truck equipment houses. They are inexpensive and easy to replace. Simple drive fit or a chevron style if a newer model. These are no-brainers.
The double gear models can be re-assembled in various configurations but again, not if you pay attention to what they looked like before taking them apart. It is the clocking of the shaft that is important and gear forward or gear to the rear.
Send me the model numbers or photos or anything else you have. I can probably help you.
