Originally Posted by cecreighton
I can't seem to get the pictures to upload right now. I will try again later.
The axle mounting plates were not welded to the frame as they should have been, which in part has caused the issue.
The next item that causes that problem, is excessive tow vehicle in terms of rigidity, excessive rated hitch bars and finally, lack of proper running gear balance.
Lift the frame so that it bends about 1 inch or so upward, then do the welding as necessary.
I am surprised that the trailer does not also have a case of rear end separation.
If it does, hold off on the welding until the separation is fixed, which when done properly, requires the removal of the rear quarter panels and removing most of the lower rivets that hold the panel below the rear window in place.
We have a drawing that we can e-mail to you, that shows you how to correct the rear end separation, that many others have used, if you need help with that problem.