Home Made Receiver Hitch Ball Mount
I took two pieces of scrap metal and welded myself up a slide in ball mount for the receiver hitch I installed on my truck.
The Square tube was originally made to be installed into a receiver hitch as it came off an old wheel chair rack that mounted into the receiver hitch.
The plate was part of a slide in camper tie down. I Pulled trailers with this ball mount for many miles without problems.