Recent content by dickeypjeep

And I'm guessing the spectrum stuff will be fine on the exterior, so I'll get to work on it. Thanks a ton Rudy et.al.

lol not quite an Mxt, a little bigger- 4900. I drive one as an equipment hauler in the mountains of colorado. (MXT's are niiiiice though- probably don't need sound deadening in those bad boys) So the open/closed cell thing as far as performance goes is moot then at the thicknesses I'm dealing...

Ok, so after reading and thinking about this, here's my plan: Spectrum sludge on the *outside* of the firewall. (Will this work??) Dynamat extreme on inside of floor, firewall, doors (already in place) Luxury Liner on top of Dynamat inside, as much covering as I can. Motor Mat on the hood...

I think a lot of the noise is coming through the firewall, but the dynamat didn't really do anything to help that (maybe 10%...) The glass will definitely be hurting the situation, but the good thing about big trucks is the engine is mostly lower than you, and the road is quite a waze down...

I've got an International Truck (medium duty- 33k GVWR), and the truck is built like a tin can. It rattles and vibrates like nobody's business. I bought some dynamat extreme and did the roof, doors, and most of the floor, and that helped a TON with the vibration sounds. Here's my problem- the...