Got the left side rear cab corner patch panel welded into place. Let me tell you, the fit of the patch panel was terrible and required a lot of message work. In the end, the door jamb edge ended up not straight with the rest of the door jamb and wll require metal fillers to bring back to straight. I had none of these problems with the right side patch panel source from same supplier. Wore out my wrist using my slapping bar to message the panel curves where they needed to be. Will work on front left lower cab corner next.