Originally Posted by
riutzelj
end play was some of the problem. According to a parts list, there's supposed to be some kind of a "thrust" washer. There are none. it's in nice shape for its age.
I'd hazard a guess that the thrust washers crumbled into bits and they were part of the crud your husband cleaned out. tandrepair.com should have replacements, also repair info. The 533 I went into had them in place, but they crumbled when I touched them.