So now that all of the floor boards are up this is the rust I've found. This is around the wheel wells. The holes are much larger now that I've been pounding around them and jabbing screwdrivers into it.
I bought some Ospho that I am going to put on the surface rust of the floor, but this is too bad for that. I need to cut this out and then figure out some kind of patch for it.
First, what tools do I use to cut this out? Then, how do I patch the holes?
Any other tips or advice at this point.