The frame is fixed. I got it aligned back up and welded the top and bottom to hold everything in place.
The middle was pretty thin so I cut it out and made a piece to fit out of some 1/8" plate.
I then ground down my welds as well as the welds from the previous repair.
I got some 4" x 1/8" bar stock and made a full length reinforcement from the factory weld in the front to just before the rear spring hanger. I cut out a diamond in the middle. That and the cut out for the cross member increase the weld area by quite a bit. I don't think this will crack on me for another 20 years.
When I pull the bed I will most likely add some more steel just to make sure I never have any issues.