Sound Proofing/Deadening The Cab?

[chillware]

I used Noico from Amazon, worked excellent.

[JohnIL]

Originally Posted by chillware

I used Noico from Amazon, worked excellent.

Chilli,
Which of the Noico products did you use? Was it the 80mil black/foil material or one of the thicker Noico Red products?

Thanks.
John

[chillware]

Originally Posted by JohnIL

Chilli,
Which of the Noico products did you use? Was it the 80mil black/foil material or one of the thicker Noico Red products?

Thanks.
John

This is the kit I used..
Noico 80 mil (2 mm) 36 sqft (3.4... https://www.amazon.com/dp/B00URUIKAK...p_mob_ap_share

[JohnIL]

Originally Posted by chillware

This is the kit I used..
Noico 80 mil (2 mm) 36 sqft (3.4... https://www.amazon.com/dp/B00URUIKAK...p_mob_ap_share

Thanks Chilli. That's almost identical to the Kilmat product we used in my son's El Camino. We followed the directions and covered 60%-70% of the floor pans, firewall, and roof. It definitely took the tin can resonance out of the cab, but it didn't really "sound proof" it very much. When I do the C10, I'll aim closer to 100% coverage, like you did. Then, I'll probably go over that with one of the thicker 394mil sound/heat barrier products.

John

[JohnIL]

Just before the winter weather hit the midwest, we had a warmish weekend. I took advantage of a rare free Saturday to install new door seals on the C10. I used push-on style seals from Brothers. The new seals are definitely tighter than the crumbling original seals and, just like the clutch fan, the new seals changed the tone/drone of the cab, but they didn't do much to quiet the cab down.

With the new door seals installed, I took the truck for another test drive. At 60mph, no heater fan, no radio, the sound level was still at 72db. The one variable was the wind. There was a 20mph cross wind that day that very well may have added to the cab noise. My previous test drive sound tests were done on calm days. I'll test the sound level again if we ever get another calm day...

John

[rustbucket66]

I've done all the things listed here, dynamat throughout including inside the doors and the back wall, insulation, carpet, the doors are sealed, and it's still loud at highway speed. These trucks are aerodynamic disasters, and the wind noise and road noise is just a fact of life. The windshield is almost straight up and down, and the roof in the front extends past the windshield. Try holding your hand on the roof at 70 mph and you can feel the vibration of the outer sheet metal wiggling. Not much you can do. On a long trip it can get to you a little. These trucks weren't designed to go much more than 50 mph. I think riding in the newer vehicles spoils us, as they are so quiet and the stereos are so good. Also, the only upholstry in the whole truck was the seat. Everything was metal. I love these trucks for their styling and everything else, but I don't think there is a solution for the noise.

[JohnIL]

Originally Posted by rustbucket66

I've done all the things listed here, dynamat throughout including inside the doors and the back wall, insulation, carpet, the doors are sealed, and it's still loud at highway speed. These trucks are aerodynamic disasters, and the wind noise and road noise is just a fact of life. The windshield is almost straight up and down, and the roof in the front extends past the windshield. Try holding your hand on the roof at 70 mph and you can feel the vibration of the outer sheet metal wiggling. Not much you can do. On a long trip it can get to you a little. These trucks weren't designed to go much more than 50 mph. I think riding in the newer vehicles spoils us, as they are so quiet and the stereos are so good. Also, the only upholstry in the whole truck was the seat. Everything was metal. I love these trucks for their styling and everything else, but I don't think there is a solution for the noise.

RustBucket,
Thank you for joining the conversation. You're right about the shape of the truck. Great styling, lousy aerodynamics. You mentioned the roof vibration. Did you, by any chance, install Dynamat on the cab ceiling? I know these trucks don't have headliners, like a modern vehicle, but there are aftermarket headliners available. They cover the center section of the ceiling, probably 70% coverage. I'm wondering if a layer of Kilmat and a headliner would help with the roof noise? Thoughts?

Thanks.
John