It's certainly weldable....I did mine on passenger side not long ago (1951 3100). Did what bartamos said in option 2, as I had to fabricate one. Dremel tool goes a long way on this small stuff also. As it is, it's no good anyway. I've gone to using .023 solid on my mig for patch panels and repairs, and it worked fine on this pivot plate. What's the worst that could happen? It still not be useable?
Mike
