Reply to "Discreet chassis brace?"

There exists a few distinct areas which I observe different issues with the seams on the Pantera.

The front windshield pillar top and bottom and the rear area around the tail lights ... I observed the need for additional steel reinforcement and treatment of the lead with attention to the preparation of the surface before paint. The area up top near the rear deck lid ... I stripped that area and it was welded so treatment of the lead with attention to the preparation of the surface before paint only.

The adhesion of paint to 70% lead 30% tin issues are mostly because the process requires oils and flux and the surface oxides quickly when shaping it. Lead was used in areas where the filler would exceed 1/8 or 1/4". Prep for paint requires acid cleaner then etching primer and a skim coat of polyester epoxy filler then a few coats of fill and sand primer then paint which today's Urethane's seem to be plenty flexible. It just takes some special attention to these areas. EASTWOOD summarizes the preparation very well. They recommend changing the lead to lead free solder .. also you were stating your car sat in the garage after paint and not sure if Adams is out there hammering the car to incurr heavy body flex ... so if its not a structural flexing ... maybe its the surface preparation for paint over these areas ?

Maybe some of the others can also shed some light on what they experienced ?