Im trying to locate a slide in hitch that a ball mounts to. Its flat and slides in underneath the rear axel. Im not having any luck locating one and I may be using the wrong terminology.
I think that you are talking about a drawbar?? You should be able to find one in tractor junkyards.
Tractorhouse.com has a dismantled machines section near the bottom of their home page. Just enter your tractor make & model number and they will direct you to places that have them.