Rear seam above tail light

[Dawso]

Hi guys. I'm almost finished prepping for paint and was wondering what to do with the seam above the rear tail lights. It's about 5'' long. Was it filled from factory or does it generally get filled for the smooth look?

[Innuendo]

Some were filled from factory, others not. Seems to depend on the plant and possibly year.
Those that are filled from factory would have been filled with lead. If you didn't melt the lead out (or grind the hell out of it) is was likely never filled from factory.

[Sandaro]

I'm only going by a small sample of HJs, but to me brisbane built has seam showing and Sydney not

[Dawso]

Thanks for your help, exposed it will be.