I am also close to installing my deck filler panel on my 67. When I removed the old one, there was a fiber mat underneath. I am assuming this is for insulation and to space between the panel and the underside structure.
I was able to remove it in one piece with very little damage and probably could reuse it.
I am wondering what others have done. Did you use a new Dynamat type product, reuse existing, find a replacement, or leave it out.
The original is pretty fragile and I am afraid it will start to deteriorate and fall through into the trunk. Needless to say, once I put this in, I wonít be able to change my mind.
The pad is about .10 inches thick, if that matters.
Any thoughts are appreciated.