477736B9-9E38-46AD-A1CE-F6DD6C9EFB40.jpg I’m no expert but that doesn’t look like even wear to me. The ring gear of the differential looks fine.
Do they come off the assembly line with gray “glue” between all the aluminum parts or the gaskets that the Parts diagram show, and that I’ve used on my 1864? It had gray glue sealer. Maybe nobody was in it. But I know there shouldn’t be slip between the bearing in the front cover and the shaft of the pinion. And I know there’s a snap ring missing from the pinion also. So I’m guessing those parts are in my pump or oil filter. I don’t really care if someone was or wasn’t in it, I’m just glad I took it all the way apart.