I have a question about the firewall pad on my '66 fastback. The original was in awful shape, so I replaced it in 2009 with one of the standard reproductions. At the time, no one was making the molded firewall pads, so what I got was basically a flat sheet of rubber-backed jute padding that sort of resembled the original pad. I was never happy with how that pad fit, and now that I have the car apart and the heater box out of the way, I figured I might try one of the newer molded pads that are on the market now.
I remember when these molded pads first came out, and it seemed like no one was happy with them. In fact, from posts I read at the time, it seemed like people were returning them in droves. I see that NPD now offers a textured and non-textured version of the molded firewall pad (part numbers 01610-1B and 01610-1D, respectively). I was somewhat surprised to see that the textured pad is substantially cheaper than the smooth/non-textured version. Does anyone know the reason for the price difference? I have no problem with purchasing the smooth molded pad and spraying it with sound deadener to recreate a texture, if that's the best option. Is the smooth molded pad really $50 better than the textured molded pad (if that makes any sense whatsoever)?
Also, should I plan on gluing the pad to the firewall? I'm sure that being molded it will fit the firewall better than the cheap pad I have installed now, but do these molded pads truly fit like an assembly line original?