I'm planning to install some Dynamat in my 58 TR3, but only on the floor, under the carpets in the driver's and passenger's compartments and over the gearbox cover. I want to be able to take it up from time to time to check the floorboards, and, of course, that's the way to access the jacking holes.
I plan to cut the Dynamat a bit smaller than the carpet and tack it down in key spots with automotive double faced tape to keep it from moving around. The carpet, which will have about one inch border extending beyond the Dynamat, will be "fixed" to the sides of the compartments with velcro, so I can remove them easily. The carpet stays in place otherwise without any adhesive.
When I removed the existing carpet to begin this project, it had been glued down all over the place (quite a mess), and much of the adhesive had dried out and failed over the years, so it was doing nothing else but creating a mess.
At least that is my plan.
Any thoughts?