so i am putting the cab back together and I was wondering on yalls opinions on what I should use for a sound deadening material like dynomat or whatever

 

Get FATMAT off of ebay. Same stuff but WAY cheaper. Do not use the stuff from the home improvement stores.

 

Why not use the roof repair stuff? It works decently, and is cheap.

 

More reports than not about it melting in hot climates and also making the vehicle smell like tar. Then when they went to try to get it out; a nightmare all in itself. Good luck on that. I researched it a bunch because I thought about trying it. Being cheap was too risky for me on this one.

The FATMAT has done me well.

 

Awsome so how much do I need and where exactly do you put this stuff ( roof , floor doors etc etc )

 

I see they make a liquid sound deadner would that not be easier?

 

Lizard Skin makes sound AND heat insulation. I think it's an excellent option.

http://www.lizardskin.com/

 

fatmax is the same price as the roofing material. I looked into purchasing the 100 sqft roll to do a couple of vehicles and then went to amazon to look on fatmax and found it to be the same price.

 

so, which one should I bye!!!

 

The Fatmat. Because its rubber, not asphalt. The roof stuff would probably be fine with no issue, but there is the chance of failure and smell. You wouldn't have to be concerned with either of those issues with the Fatmat because it's made to be sound deadening.

I haven't used the Fatmat but it is what I'm going to use when the time comes.

 

I am going to call Lizard Skin today and see what the cost is compared to Fatmat

 

You can get Lizard Skin at Eastwood (they're a site sponsor), it's not cheap though.
http://www.eastwood.com/lizard-skin-...-gal-pail.html

 

I used the cheapest stuff i could find on ebay, works really good. Just did it about a month ago, ill post some pix.

 

Amazon.com: 100 Sq Ft FatMat 50 mil Sound Deadener w/Install Kit: Automotive

 

I went a little different route. Using the thicker recycled-mat type, with an integral mylar foil layer. The foil has a cross-hatch of nylon reinforcement. This is available at upholstery shops, and has the added benefit of being good insulation for our cold climate. An added benefit is that it does not need to be glued down. If it gets wet, it can be pulled up and dried. Also, the brake line and some wires are under here, and you might need access some day.

This was inexpensive enough to do in two layers. Each packs down to about a half-inch thickness under your feet. It fills in the footwell contours a bit, and made it easier to form generic automobile carpeting to the floor.

Two tips if you go this route:

1) cut your first layer short of the thresholds so only the top layer is captured under the threshold trim piece. And you may consider trimming some of the mat from around the 'captured' edges.

2) cut your top layer with the seams away from wear-n-tear areas.

I chose to leave some of it fairly loose, overlapping, up the firewall a ways, and it took some longer carpet screws to tack down a corner or two. If I did it again, I might epoxy in a couple of omega-shaped sheetmetal points to drill into. HDPE blocks might work. This way fewer holes need go through the cab sheetmetal.

The only problem with this, is that it is so quiet that the wind noise seems loud!



Post your tips if you did something similar, as I didn't see much advice on the topic.