This must be a common rust problem with the design of the Mustang II fender brace. We had a lot of rust on one side but removed both and sandblasted them.
Starting to fabricate a new piece
After Brian finished he epoxy primed and fit it back on the fender and marked where he drilled out the factory spot welds. Next he will sand those spots to bare metal so he can weld.
Clamped in place ready to weld
Welds ground down and ready for epoxy primer.