Re: Parts identifcation please
Yes, that drive gear sits on a tapered shaft with a woodruff key. I've seen the key installed a bit off by the factory causing the gear to crack, and I've seen it pressed on off-center on the taper so that it wobbles. You need the extractor tool to get it off.
Oh, just recalled that one of the seller's sites has that diagram with a key that names all those numbered parts, but don't recall which one.