First, if I am in the wrong area please put me in the right direction! I now have my step father's troy built horse tiller (8HP)(SN 0957052) appears to purchased in 1991. It has been leaking gear oil between where the Tine attachement transmission mounts into the main body. When I opened it up...gear oil ran out of both sides. I think my leak is on the tine transmission side. My guess is an wil seal. Any suggestions??