Doc,
Thanks for the reply. Yes, the part in question is the toplink, and, as you must be aware, I'm very short on the proper terminology for these matters. The problem is that the pin in the toplink is so small with respect to the slot in the implement, that it looks like it could just "walk" through the slot while I'm trying to use it. That's why I was wondering if I could get a threaded half for the toplink with a larger sized--now what do you call that!? It's not a ball joint but it sort of looks like one, though it is a swivel point for the tractor end of the connection--whew! This is what happens when a city boy, who dearly loves the country, goes into uncharted territory. Thanks for your help.