Filling the void?, Space above rear indicators Options

[defianty]

I'm currently repairing my rear end as pat of my restoration journey. A small collision in the rear corner must have opened up the seam sealer and the water got in.

So now this is all cut out and a repair in the process, what do I fill the gap with now?

[mzalanka]

I think there is a bigger issue here. That looks like a LOT of bondo on that rear quarter. If you've already gone to this much work, you might want to fix that area correctly.

I would suggest sanding off all that bondo so you know how far forward it goes and how much rust (trust me) is under all that. Then cutting the entire rear panel forward to that point. Source and patch with a solid piece from a donor.

It's actually not terribly hard to cut and replace that section. It's all held together with spot welds, maybe 20 of which would need to be cut to allow removal. The biggest challenge would be to get a cosmetically acceptable result with wherever the patch ends - going forward past the wheel arch would be my choice.

Just my opinion. Good luck.