Next up to share is a repair to the A pillar where it attaches to the unibody. Evidently there was some flexing going on here at some point. Looking at the unwelded seam (inside edge of the corner), it seems obvious why this happened. Pics show that aligns with the crack in the lead body filler:
Also, note the indentation/impression made by the back edge of the fender. Is that how it came from the factory, or is that unusual. The driver side fender did have slight accident damage just behind the wheel well opening, above the body line. Maybe a slight side impact there caused the back edge of the fender to bump the lead?
I used a propane torch to heat the old lead and watch it run off onto the floor. Then I used a blue stripping wheel to clean up the surface of the metal, followed by liberal use of the torch and compressed air to blow the old lead out of the crevices... followed by use of a stainless wire brush.
Given the lack of welds here, I strategically set a couple of tacks and a bead with my MIG welder for good measure and ground the ones in the inside corner down flush:
Next came the tinning. I watched a Youtube video to get a reminder of how to tin. An Eastwood lead kit from my restoration of my other Z back in 1993 was put back into action. The tinning "butter" did pretty well considering it was 26 years old. At least, I think it did...
I neutralized the acid with some water and baking soda mixed together. Then went over the area with a wire brush. Next came the lead filler. Again, I used a standard propane torch:
I think it came out pretty well. Next, I started shaping with a file as well as a die grinder:
More filing and some sanding with a DA and 80 grit. Looking closely at the passenger side (3rd pic), I see that the body line is altered before it meets the back edge of the fender. I will replicate for the driver's side.