Sound Deadening Material Question

I never used it in a big truck but Dynamat works really well, yes it is a little pricey..I bought it in a bulk box from Summit Racing when I passed thru Ohio to save on shipping because the stuff is quite heavy..

Your local car stereo shop or even Crutchfield might know of something cheaper that works as well...

 

In my '95 International with a box slrrper, I put two layers if 3/4" foam board in the sleeper walls and roof, and inside the side box doors. The noise inside whild riding the sleeper was cut by more than half, plus you could breath heave and keep the sleeper warm, and it cooled just as easy.

In the front I put jute carpet padding on the floor and new carpet over that. I took off the engine cover inside and insulated that, insulated under the hood, )you will be suprised how much engine noise that takes away), and stuffed unbacked house insulation in any hole I could find. I never did get around to insulating behind the door panels, but what I did made a huge difference in sound inside the truck.

 

Maybe look and see if J.C. Whitney has something like your looking for,....

 

The reason I used the size foam board I did was because I loaded at a place that made the stuff. They had a pile of damaged board, and gave me all I wanted. The International was a flat top sleeper with an air shield, so I strapped down all that would fit on the roof, under the shield.

 

Go to home depot and buy this stuff
http://www.homedepot.com/Building-M...splay?langId=-1&storeId=10051&catalogId=10053
Or this
http://www.b-quiet.com/extreme.html

That B quiet stuff should be cheaper.

 

http://www.amazon.com/s/ref=nb_sb_ss_i_2_12?url=search-alias%3Dautomotive&field-keywords=sound+deadening+material&sprefix=sound+deaden&ih=10_0_1_1_0_0_0_0_0_1.64_271&fsc=-1

Amazon is awesome! Look for a liquid one to put down as a base and like either scuff up the floor or sandblast it if its rusted or anything. Put down a liquid one and then the matting will adhere to it also and it will make a huge improvement.

 

I did my entire F-350 Superduty in B-Quiet Extreme. To be totally honest, it made a difference, but not nearly as much as I had hopped for. Although my speakers/subs cant rattle the sheet metal any more, its dead quiet now, that part is way nice and worked as advertised. I just wanted less road noise than what I got.

This isn't my truck, but the photos in this link are identical to what my truck looked like when I was done. http://www.b-quiet.com/f350.html I probably put more in than what those guys did. Doubling most areas and triple in some too.

The only thing I didnt do was the head liner. Just need to get around to doing it. Personally, if I was to do it again I would go with the thicker foam stuff.

I have heard the asphalt based stuff can stink bad in the summer. Personally I haven't experienced that myself, and its been hotter n hell round here this summer.

 

i used dynamat and then put the silver backed poly insulation in my truck. awesome difference.