Help with leaking Troy-bilt Horse seals?

Hello. I have a Troy-bilt Horse that was my Grandfather's. It had been stored outside for as long as I can remember, and seemed froze up. It was also leaking oil like crazy. After removing the belts, the engine turned over with decent compression. I replaced all the bearings and seals in the transmission, and did a tune-up on the Tecumseh and it now works great. My family has used it two seasons since. It is still leaking some oil at both the axles and the back of the tiller shaft. Is this normal or did I do something wrong? I cleaned the housings out with a nice white rag, then pressed the seals in; no silicone or anything. It doesn't leak as bad but it irritates me that I have to park it over cardboard. What did I miss?