My Alpenlite frame broke on the road

Pictures will follow, but I was dismayed to discover the whole front closet on my fifth wheel jammed up against the ceiling. Checking around all I could conclude was my frame had broken. I was somewhere in British Columbia heading back down to Idaho where my daughter and son-in-law live. I was not unhooked from the truck when I made the discovery. Upon putting legs down, the front went back down to close to normal. I went outside and raised and lowered the legs, putting the load on and off the pin box, and sure enough the pin box went up and down 2 inches at least. No one could fix it where I was, so I elected to try to make it to Idaho. I indeed made it and discovered two of my grandsons, aged 22 and 18, were visiting their aunt and uncle, so I had man power. The next morning we tore into the camper trying to expose the pin box, which I expected had broken loose. We figured out how the closet came apart and finally found the pin box frame beneath the closet floor. All was perfect! That meant the frame going backward had to be shot. We started dismantling things above and below, when I heard the shout from my son-in-law from inside the bedroom, “I’m onto something! Oh, I found it!!” All of us ran inside, and a flashlight shining on the 2x6 square metal tube that runs horizontally from the main chassis frame to the pin box frame was cracked 4/5ths of the way through. It turned out on the drivers side, right where the passenger side had cracked, a heavy metal beam that supports the bed slide was welded keeping that side from breaking. The break was indeed at what I believe is the weakest link: immediately passed a triangulated brace the stabilized the beam with the vertical beam going up from the main lower beam. It’s like the front of a goose neck. Anyway, other brothers in our church here were certified welders and machinists. The next day we had welded the crack and placed another beam on top of the old one, welded it all the way down making that beam twice as thick as before, then welded 1/4” plate to the side. The weak link is now the strongest. My grandsons put everything back together and all is well. If I can get the pictures to load they will follow.