I didn't build a hoe, but when I built the loader for my machine. I lined the pin holes with DOM tubing that was welded in then reamed to a tight fit. That would be for the non turning surfaces, for the bushings in teh arms, I welded in tubing then pressed in bronze bushings, then reamed those to size. Of course added grease zerks, grooves etc so that everything gets grease.

I looked up and the details of what I did are on the part 5 PDF on my build page.

http://machinebuildersnetwork.com/ubbthreads.php?ubb=showflat&Number=310#Post310

Not saying it's perfect but it seems to work ok, My machine bas about 200 hours and I don't have any looseness yet.

A lot comes down to what machining capabilities you have and what level you want to take it to.

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