Apparently I have one of the rarer gear boxes. The input shaft seal that everyone has fits the other two style gearboxes. The seal I'm looking for is a hard plastic seal with a lip on it which goes furthest down into the input shaft. I'm at a loss and have almost just broken down and bought a new gearbox because I can't find the piece. It's the size of a quarter and all the seals I get are too big. Heeellppp!