Before the upholstery guys install the vinyl top I wanted to install a sound deadener.
First off I better specify my goals- while I do plan to put a high end modern stereo in it, this isn't so I can have competition sound. I mainly just want a nice quiet ride (taking into account the car IS actually a classic Mustang) and a good "thud" when I shut the door. Sound deadeners seem to improve the feel of a car in weird intangible ways. Thats what I'm going for. I do not require 100% coverage.
I ended up choosing Dynamat for a variety of reasons. First off, I don't really think there is a huge difference between all of them. I'm sure you could get all technical and get in a huge debate over the Dynamat / Fatmat / Peel & Stick debate. I don't really buy into it. I'm sure there are some cool physics behind it, but for the guy like me it probably all is pretty much the same.
I have heard, however, that Dynamat tends to be more sticky then the others, which is why I chose it. Since it is going underneath the headliner, I wanted to make sure it would stay for good. To fix it I would have to pull my headliner, which means also pulling the windows...and I don't want to do that. A few extra bucks is cheap insurance. Also...I can now say that my car has "Dynamat" without lying. It's kinda become a generic term.
There was an insulation type material under the headliner rods, glued in spots. It came down easy, and practically fell apart when removing it. My upholstery guys said they had new stuff to put up there. I scraped off most of the glue and wiped the whole area with lacquer thinner.
The roof area above looked pretty good. Didn't see anything that caused me any type of alarm. Some surface pitting here and there, but that has had to been brewing for 50 years. Not gunna worry about it.
This was the absolutely worst spot.
The install went fairly easy. One thing about it- it's sticky. Don't let it touch anything unless you want it to stay there. As a result its pretty tough to put in tight places. Still, its not super difficult to install. We used a roller to make sure it had good contact.
In this spot I needed to keep the bottom open for the vinyl guys. You need it to access the outer trim. I'm not going for 100% coverage, just want to get a good portion of it.
And finally...the before and after video.
View: http://www.youtube.com/watch?v=i_lkw8etTH8&feature=c4-overview&list=UUjw-UtEn88Kypr4TbgM8rEA