TTodd, it's possible that you don't have and input seal. Mine has the same names on the tag and might be from about the same time period. Instead of a front seal, the yoke has a grease grove cut in it to spin the gear grease back into the case. Mine leaks too, thicker gear grease would probably help. I haven't had the back yoke apart yet, so I'm not sure if it has a seal or not. Paul.
