[safari57]

I had one hitch head that had the same problem you had. I ran a small bead of weld on the bottom, one on each side of the bottom. Then test fit it and used the grinder judiciously until it slid in tightly but was still removable without hurting myself trying.

As Michelle has noted it could also be a too loose pin. I've found that going to the RV Parts store and trying their hitch pins until I found one that was just slightly tighter fit than mine stopped an annoying rattle on one hh.

Barry