I have done a search and found alot of people trying things but not alot of reports back for what has worked. I am looking to see what some of the members have done for a quiet ride. I have already put on some Second Skin Sound Dampening Paint and am looking for that next step.

Here is what I have so far:

Second Skin Audio Spectrum http://secondskinaudio.com/index.php...pectrum-detail at $59.00 a gallon.

I used 2 gallons, one in the back 2/3rds and the other in the front, a little heavier.

To get an idea of what I had, a buddy and I took it out on the highway at 55 and got a reading of 95-99db between the front seats, after the coating, and 60 days to cure it (not their recommendation, just took us that long to do it) we got a reduction to 78-80db in the same location. So, it does something, now I am looking to bring it down further.

It seems that most of my noise is from the hole cut for the 4x4 shifter, is there a rubber boot that fits? The hole that is cut there is way over sized, is there any reason that I can not cut a piece of steel with a slot just wider than the select lever width and fit it in?

I also saw some heavy rubber matting for garage floors I was thinking of cutting and putting it down. Thoughts?

 

I heard dynamate was good stuff.

 

On my 2nd gen I used bquiet ultimate and ran a cross a great deal on some dynomat extreme. So my truck has both. I ended up with a quieter truck but not as much as I would have liked and have done more research.

I have since learned more about the proper process to do this. First the dynomat etc really only needs to cover 25-30% of the metal. It does not help much to cover it all or to even add multiple layers (it does help but not with the results one might expect). The proper procedure is to use a dynamat type material on 25-30% of the area, then use a decoupler over 100% of the area and then a mass load material like lead. Some have gone down the path of using lead with good results there were some great threads on it years ago on TDR. You can also use another type of mass loaded barrier that is a foam type composite on top of the decoupler layer. You can find those two items combined in one such as on bquiets website or seperately. The website listed below is the only one I could think of off the top of my head that explains the process fairly well. Though there are others.
http://www.sounddeadenershowdown.com/cgi-bin/index.cgi

I would read through it and also click on the individual products across the top as it goes into more detail within those. I am not saying that website has the best material but it does give a good description of the proper process and procedure to get the best results. As opposed to the dynamat or whoevers material website that just says our product works the best.

While my multiple layers of dynamat and bquiet ultimate of 100% coverage and multiple layers did help to be honest it is still far from quiet. Better than originally for sure but not the results I was hoping for in the end and though it has been several years I still havent gotten around to beefing it up more. Partly because the truck is no longer my daily driver but a weekend warrior and partly because I have gotten lazy.

 

I bought the stuff needed for the above link, have not installed yet though.

 

I bought dynamat extreme and put it on the floors roof and across the back of the cab, I haven't done the official decimal test yet but I would say its about half as loud as it was. I bought it from a flea market. It was 240$ for 36 square feet, The guy said it would do my single cab no problem but I went pretty heavy on it and had to buy another box.

 

Tires play a big part. I know that the tires I run are very harsh and noisy. On my ford, I notice this every time I switch to my Ice tires. They are load range D and are really quiet compared to my summer 'E' types with the off road tread.