Today I attacked something that has been bugging me since I got the truck. The owners before me built a beefed up custom hitch for the truck. They must have built it for hauling a big trailer up the ALCAN when they moved up here in the 80s.... Idk.... Its well put together except for the dang pin holes. When he drilled it out he drilled the holes a little too high. Consequently, the pin holes of every hitch I've tried don't line up with my receiver's holes. So I spent a good part of an hour using a hand file to deepen the holes so the hitch pin can slide through without trouble. I made an effort to take my time, and not make the holes so big that there was slop for the pin to move around.
Now I can finally tow our boat or trailer!