[tdishon]

Originally Posted by dsraven

thats what I was gonna say too, long lasting filler. some body guys are not crazy about it but it works. I have seen a few original seams done with brazing on the task force trucks. dash braces, some A pillar areas and around the windshield opening seams

It does add a little strength compared to filler, but I don't think they had any in the 50's. Well lead... It does fill the void with low heat so it doesn't cause warpage like welding.