DrewE wrote:
Welding looks impossible to me without removing the foam etc. from the area...
...I might try a reinforcing plate and some JB-Weld (and mechanical fasteners). If there's any easy way to do so, I'd also inspect the same joint on the other side for the same problem.
Agree. I'd make a generously sized triangular (but square wouldn't hurt, you'll hide it) fish plate. One that allows say four fasteners per edge, inch or a little more apart. Find a POP riveter that'll allow setting steel 3/16" rivets. Might have to be a hydraulic one. They're used on snow machine treads.
"Welded Metal Frame" sounds tough but with the light gauge of the metal, it also means something the coach builder was able to put together fast, perhaps with not-so-skilled labor, and get on with constructing your coach.
