[rgunlock]

Originally Posted by 68 C10 Driver

I would spray that roof cavity with Rust Mort, then epoxy prime. Once the roof is reassembled spray the area with Waxoyl using this spray gun: https://www.amazon.com/Professional-.../dp/B01AAOGFAO

I would also Waxoyl the rocker cavities as well!

Thanks for the suggestions 68 C10 Driver. I'd been reading about shooting this type wax product down the A and B pillars. I'm sure it wouldn't hurt to coat the entire area.