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View Full Version : Need advice on sound deadening


Blue1972
06-03-2012, 08:16 PM
I am getting ready to replace the carpet in my '72 Chevelle and figure it would be a good time to install sound deadening. I am also thinking about doing the doors and possibly under the headliner at the same time. Thoughts? Experiences?
Thanks!

flash
06-03-2012, 09:28 PM
In my 72 truck we are going to use spray in bed liner in the cab and then a rubber mat over that .Our chevelle I used the regular insulation under the carpet but its going to be loud in it regardless as it is a convertible and the top is down most of the time.

fleming23
06-03-2012, 09:39 PM
If I were to do my car all over again I would scrap the factory sound deader and instead look into doing the entire interior in a dynamat type product. The tar paper stuff from the factory works I suppose but the more modern approach would definitely be worth considering for its excellent heat & sound reducing qualities.

I would have to imagine something line spray-in liner like John mentioned would work wonders as well.

Ms Grumpy
06-04-2012, 05:49 AM
We used the Dynamat when we redid my car. It was a really big difference. We used it in the doors and even on the ceiling. At the time it was installed we were looking at getting the A/C and figured that the any extra insillation would help. When we did our shopping, we got the best deal on Amazon.

Blue1972
06-04-2012, 10:36 AM
What was the ballpark cost of using dynamite for everything, and did you put it in the trunk as well? I like the idea of getting a heat barrier as well. San Antonio has a lot of hot days, and my Chevelle is my daily driver. I put Vintage Air in it since it is not a convertible. :)

Ms Grumpy
06-04-2012, 03:29 PM
We did ours a couple of years ago, and I am sure that the prices are different. We did not put it in the trunk, wanted it painted.

shadowgray396
06-07-2012, 08:35 AM
I used a product from Eastwood, same rating as Dynamite, half the price. Easy to put in.

http://i777.photobucket.com/albums/yy58/shadowgray/Final%20Build%2070%20chevelle/Interior/RaysChevelle010.jpg

robo3
09-04-2012, 05:58 AM
i used fat mat 4 roll kit from ebay few years back. headliner doors quarters floor rear deck. quiet and solid !!!!!

Ms Grumpy
09-04-2012, 05:34 PM
Ray, I want the clock on your dash.

size-o
05-16-2017, 10:46 PM
I'm losing it. When you install the sound deadener on the doors, did you install on the inner surface of the outer skin. Is there enough room to get your hands in there and does it interfere with window mechanisms?

Perry

chevymaher
05-18-2017, 06:44 AM
Mine has a spray on type factory. Maybe do that in the doors and quarter glass areas.

dconnor
07-11-2017, 05:07 AM
Pricey, but Dynamat is a good product. I also heard good things about Lizardskin.

pitts64
07-11-2017, 07:16 AM
I didn't install anything in my el Camino and it's nice and quiet.. I don't want to be breathing in those poisonous fibers and odors that stuff is made from..

vinces427bb
09-18-2017, 01:13 AM
i used Cool It, ThermTec deadener foil/rubber/adhesive in rolls
better price than the others, covered from firewall back to speaker deck behind where the rear seat used to be