The Stovebolt Site Forums The Shop Area Driveline 318 Muncie 3 speed diagram

There is a bearing nut/oil slinger that is threaded on the front of the clutch gear and staked in place. There is also a corresponding tapered portion of the bearing retainer that is very close to the bearing nut but is not a contact surface. The idea is for whatever oil that passes through the bearing is directed into a passage in the bearing retainer and returned to the transmission case. I have found many of the bearing retainers and the bearing nuts excessively worn which allows for the oil to just run out the front. It is difficult to remove the nut without a special wrench so many use channel locks which dents the outside and causes metal transfer to the bearing retainer, thus the beginning of a problem. The bearing nut/slinger is left hand thread.
Fred