anybody towing 3/4 burb 6.0L towing 9K+ LBS

Boy you have a good memory! Yes, the first replacement was a Draw-Tite that worked well, but unfortunately my second lesson learned was about the bent-end hitch pins....the holes in the receiver elongated so much that the whole hitch head assembly moved in and out when accelerating and decelerating, making a very disconcerting "clunk" when pulling away from a traffic light or other stop. I trashed the Draw Tite receiver and the bent-end pins and went with this set up a few years back. Note the new pin in the photo./ I have since upgraded the pin to a Master with a 90* locking end so I don't have to fight the key against the 7-pin plug. Only thing that bugs me about this hitch is where they put the plug mount.