I put a 8" Bazooka base tube in the trunk of my 67 a while back. The only rattle noise I got came from a fancy chrome frame I had added at my rear license plate. Easy fix
Seems I got lucky. Good luck with yours.
I'll add this too... The trunk lid seal is repoped but its no better than the OEM in design. You can buy a more modern seal for less at any parts yard. Their U shaped channel fits over the pinch weld so it installs with zero gluing.
