Sound deadening

[68swep]

Im getting my floor pans replaced soon, fixing the rust. While everything is out of the cab I want to try to make my cab quiter. Has anyone done this? Dynomat any good? If possible I would like to be able to take work calls while driving. Thanks!

[PwrWgnDrvr]

Carpet helps a lot.

[Wildergarten]

Im getting my floor pans replaced soon, fixing the rust. While everything is out of the cab I want to try to make my cab quieter.

Underbody coating also helps.

[BigBlockTrucks]

A nice thick headliner will help. Also less aggressive tires makes a difference.

[PwrWgnDrvr]

Factory offered sound deadening insulation panels that attached to the firewall above the carpet up to the heater and wiring and also on the kneewalls.

[Wildergarten]

Factory offered sound deadening insulation panels that attached to the firewall above the carpet up to the heater and wiring and also on the kneewalls.

New pins to hold that fiberboard/fiberglass insulation can be found on ebay.
https://www.ebay.com/itm/254838516713?c ... a5db1a91e3

[martincom]

I utilized Hush Mat, that I sourced from Summit Racing. It also slows thermal conduction as well as a moisture barrier from melting snow that soaks carpet and the sound deadening pad attached to bottom of it and the rubber mat. I utilized it for the floor boards, rear cab wall, the inside of the door skins, and the roof. It really made a difference. The doors have a more solid feel/sound when closing. I have photos of the installation, but I'm traveling now and I don't have access to my server. I utilized foil HVAC tape to seal the Hush Mat joints.

I wouldn't bother with the fiberglass backed fiber board for the firewall. They are real flimsy and not forgiving. I ran the Hush Mat all the way up. I sourced the Auto Direct carpet from Rock Auto. It is also cut to go to the top of where the fiberglass backed fiber board would end. So I ran it all the way up and utilized large head christmas tree fasteners to secure the carpet in the fiber board holes.

[Wildergarten]

I wouldn't bother with the fiberglass backed fiber board for the firewall. They are real flimsy and not forgiving.

True indeed! But if the poster or someone searching the topic is planning a "restoration" the original material would be required.

Good to facilitate both.

[68swep]

Thanks everyone! Im going to order some Hush Mat and new carpet. Im also going to look into undercoating.

[Kaegi]

Factory offered sound deadening insulation panels that attached to the firewall above the carpet up to the heater and wiring and also on the kneewalls.

does anyone make new firewall pads?

[martincom]

Robin is taking pre-orders. His web page is blocked from the site. It is easy, followed by, street, followed by llc and then .com There is dash between easy and street.

[JJ]

Good information as my "68 D100 longbed is going to go through the same deal as well as mysteriously turn into a factory shortbed in the process lol.