I hate to say it, but you might be looking at a more expensive repair.
Last year, while traveling through Southern California, we somehow managed to severely crack our frame. The damage was probably caused by a combination of hitting potholes on the interstate and the fact that we had installed Lippert risers to lift our rig 2” (so that we could clear the hill in front of our driveway).
The frame was damaged enough that both tires on that side were touching each other. Since we couldn’t move the rig in that condition, we contacted a mobile welder, who was able to cut out the cracked part of the frame and re-weld the frame and spring hangers so that we could continue home to Washington State.
However, when we got home, we discovered that, when the frame had cracked, the rear end of the frame had dropped down 2” and the temporary welds had secured it in that position. After contacting numerous local RV repair facilities, we were told that only an authorized Lippert welder could repair the unit.
First, we had to pay for a Lippert technician to drive up from California to inspect the rig. Then we had to find an RV repair facility that would allow an outside welder to come onsite and do the repair. THEN we had to pay for the Lippert welder to drive up AGAIN to do the work.
Needless to say, this turned out to be a VERY expensive repair job!
Here’s the final repair with new hangers and cross members: