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I got a pm from '67Nukeford, asking about my door insulation. I know that I started a thread, and posted some photos, but cannot locate it, nor remember what I called it.. so, for the benefit of those wanting to quiet up the cab a little, here goes again...
These photos were an 'in progress' of the cab sound proofing (or deadening), in an attempt to lessen the Tinny sound, when closing the door. It worked well, and so far, I have no problems.
I used the Dynamat from Amazon, and a 3/16" foam sound absorber on the inside of the door panels. The foam absorbe's some of the vibrations, and deadens the 'drum' effect on the panel. The foam sheets came with adhesive on one side, so it was easy to install..
2x on the sound deadening. It is well worth the time and trouble to put it in. Anything that is covered in my 70 has a layer and I had enough left that I put a second layer in the doors. That truck is as quit going down the road as a lot of new trucks.
For those who are concerned about water infiltrating and wetting sheet insulation perhaps contributing to rust later on, an alternative is spray-on rubberized undercoating. You can apply as many coats as you please, but one decent coat deadens noise nicely. Pretty cheaply, too. You can get rattle cans of it at O'Reilly's, Vatozone, Advance, Pep Boys, etc.
I also did it under the hood, in the spaces between the X bracing. It made the hood a little heavy, but I am getting older and need the exercise. I used aluminum tape, for the edges, just in case it got warm enough to melt the butyl rubber under the foil. My thinking is that the taped edges will keep it from running all over if it does melt.. So far, no melting, all summer, in Baja.. Oh, the photo of the door panel is more recent, after I made the hardwood arm rests.. I used a fiberglass roller, to roll the Duramat for complete adhesion and roll out most of the bubbles that can develop. It worked very well..
Thanks for the pics! I just picked up 36 sqft of Noico sound deadener and I am planning on putting some in my new roof and some in the doors. Where did you get the adhesive foam that you used on the door panels?
2x on the sound deadening. It is well worth the time and trouble to put it in. Anything that is covered in my 70 has a layer and I had enough left that I put a second layer in the doors. That truck is as quit going down the road as a lot of new trucks.
Thanks amigos. I had ordered, and received the replacement ones from LMC, but they were sub-standard, and I just couldn't put them in my truck. When looking around, for something handy, and available, I thought "Why not use some of the Jungle hardwood' left over from the front bumper? So, I just copied the worn out, and frankly pretty ugly old green ones, from the factory.
The foam I used on the inside of the door panels, came from Amazon also, and had one side with adhesive, which was really sticky. If you stick it to itself, give it up, the glue is tougher than the foam. With a little trimming, it replaced the factory, dried out, cracked, old foam gasket. No more rattles, even on an old cobble stone road in Baja. So far, I am liking it..
Well, I tried to go back and look at my Amazon orders, but you have to order a purchase history report, and its not like Evilbay's at all. Now, I am not sure if I ordered Dynamat, or the Noico ? Whatever, it works. I just ordered some more, for my '93 F250 4x4, in the hopes of quieting it some. Darn old truck just keeps on running, so I cannot justify $60K for a new one.
04-21-2016, 11:29 AM
It is well worth the time and trouble to put it in. Anything that is covered in my 70 has a layer and I had enough left that I put a second layer in the doors. That truck is as quit going down the road as a lot of new trucks.
