More pain. I took off the tension rod mounts to get to the slightly scabby paint on the under side of the driver's chassis rail, the hole looked like the ones to the left and right where it looked like one layer had corroded through. The thing that concerns me is I made the hole with a knotted wheel, which suggests to me that the area is pretty knackered.
Going to cut it out, but stay away from the mount hole. I'm not sure whether to try and build it up sheet by sheet or clean it up as best I can and weld some 2mm plate over it. Second option makes me cringe.
Help!!!