Progress on Replacement of Cross Member at Rear
Work is slowly progressing on our trailer. We gutted the interior and then started in on the rear area.
Based on what I have found so far, I think that the bathroom area has been leaking and wet for a long time. In addition to the lower section of the cross member missing in the back, the next cross member is also in rough shape (both top and bottom are very thin), also the bottom of the frame on the passenger side is mostly rust. Also, on the passenger sider, there is only one support outside of the frame (I can't think of its correct name) and it doesn't look original, at least the weld doesn't look professional.
The frame is still straight so I was considering adding an extension to the frame like what was done on the driver's side that makes up for the big hole in the frame for the drain pipes to go through. Any other ideas?
I am not sure what I want to do with the second cross member. I want to put a gray water tank in front of it so it will need some sort of reinforcing or maybe just remove it and replace it too. Everything in front of that second cross member (going forward) looks good, on the inside there is still paint on the frame, very little rust.
Most of the wood next to the shell fell away but I have some that is still intact and I need to get it out from between the frame and the shell. What is the best way to remove the bolts? I have considered just sticking the grinder into the wood but I am worried that if I slip it could be very ugly. Another thought was to dig the wood out and then just cut the bolts but I haven't come up with a good approach for that either.
What is the best way to remove the old cross member(s)? Should I cut them out and then grind away what is left? Is there a better approach?