Hi Ozdozer,
Thanks for the info, the 1953 Service Magazine explains when the changes occurred and the parts manual reprint explains the sequence. I don't think this topic would ever be resolved without the advantage of the BB's.

OZDozer,
Thanks for typing all that up. What I first remember about the oil clutch on those old 2U’s was you never had to have a gallon “Log Cabin Syrup Can” full of engine oil riding on the deck for the clutch fingers, that leaked allover your slicker sack. With those old dry clutch’s, you could take off the small cover on the deck above the clutch and pour a small stream of oil at low idle on the upper right bolt hole and it would hit right on the clutch fingers……easy to engage after that……almost as easy as the new oil clutch it‘s self. Thanks again. Om and myself swear to keep better notes, since this subject has been gone over before. LOL
Kelly