A230 3-speed

Yes, call Brewers to check. He may save used ones from a tear down. BUT the A230 doesn't get much respect and hence stocking rebuild parts can get neglected. I do save used tear down parts from the 230, and should have them. I looked in my NP parts book, and surprisingly there isn't a PN for that item. I looked to give you a number to chase. Gaskets, yes also an issue.
Shifty
Update: PN is 3410162 (21-15-33)