Sound Deadening for Broke People

[JeepKiller]

So here's the back story. Last month I sank my 4Runner in about 5 feet of thick mud. Mud came in and up to the bottom of the seats and sat for about an hour until I could get pulled out. Fast forward and everything is mechanically ok. I just had to pull the entire interior and pressure wash the carpet, seats, etc. Well since I had it out I thought I'd look into some cushioning and sound deadening. I looked around and found this stuff called "Shaw laminate floor underlayment" which is like a three in one underlayment. It has a sound transmission rating of 72db. It comes in 100ft rolls, just cut it to shape and tape it down. IMO it's better than anything else I've seen and its cheaper. I can barely even hear my starter anymore and the road noise is way down. It makes me really notice how loud my doors are haha that's next. Anyways this is a lot longer than it should have been, but it works.

 

[jstim]

So here's the back story. Last month I sank my 4Runner in about 5 feet of thick mud. Mud came in and up to the bottom of the seats and sat for about an hour until I could get pulled out. Fast forward and everything is mechanically ok. I just had to pull the entire interior and pressure wash the carpet, seats, etc. Well since I had it out I thought I'd look into some cushioning and sound deadening. I looked around and found this stuff called "Shaw laminate floor underlayment" which is like a three in one underlayment. It has a sound transmission rating of 72db. It comes in 100ft rolls, just cut it to shape and tape it down. IMO it's better than anything else I've seen and its cheaper. I can barely even hear my starter anymore and the road noise is way down. It makes me really notice how loud my doors are haha that's next. Anyways this is a lot longer than it should have been, but it works.

This is AWESOME. [MENTION=76419]Doc2012[/MENTION] this is what you should do!

 

[azcat90]

What about doors?

...how loud my doors are haha that's next...

How are you going to deaden door noise?

 

[JeepKiller]

How are you going to deaden door noise?

Take the plastic off the doors and cut the underlayment to shape and tape it inside. It should work, but if it doesn't then oh well.

 

[MyHigh]

Very nice OP!

Thank you for sharing, I imagine one could also use like a 3m can of spray glue without any negative consequences.

 

[StreetCreeper]

So here's the back story. Last month I sank my 4Runner in about 5 feet of thick mud. Mud came in and up to the bottom of the seats and sat for about an hour until I could get pulled out. Fast forward and everything is mechanically ok. I just had to pull the entire interior and pressure wash the carpet, seats, etc. Well since I had it out I thought I'd look into some cushioning and sound deadening. I looked around and found this stuff called "Shaw laminate floor underlayment" which is like a three in one underlayment. It has a sound transmission rating of 72db. It comes in 100ft rolls, just cut it to shape and tape it down. IMO it's better than anything else I've seen and its cheaper. I can barely even hear my starter anymore and the road noise is way down. It makes me really notice how loud my doors are haha that's next. Anyways this is a lot longer than it should have been, but it works.

You speak my language! You had me at "Broke People".

 

[Doc2012]

Not to be a Debbie Downer, but I honestly don't think that's going to work too well, just taping it down.

I would see if there were some kind of industrial adhesive that can be put down and used to hold it in place on the floor pan.

Also, you're going to want it to somewhat flow with the truck flor pans, as in hitting the ridges and stuff like that. Those air pockets are going to amplify the sound of anything, and I'm willing to bet that if you did glued it to the floor pan, you probably wouldn't hear jack shit.


[MENTION=110387]jstim[/MENTION], I'm going to keep going with the Peel N' Seal, but I just might have to throw this down on top once I do some more research on it.

Either that, or just throw it on the roof.

 

[gamefreakgc]

Take the plastic off the doors and cut the underlayment to shape and tape it inside. It should work, but if it doesn't then oh well.

Yeah that'll help, but not get rid of a ton of noise. I just did something similar on my doors but without some sort of layer than adheres to the outside metal, it will still vibrate/resonate considerably at highway speed.

The floor doesn't have that issue as bad since there's so many components attached to it to keep it from resonating (except for the rear cargo area, that's next on my list!).

 

[JeepKiller]

Yeah that'll help, but not get rid of a ton of noise. I just did something similar on my doors but without some sort of layer than adheres to the outside metal, it will still vibrate/resonate considerably at highway speed.



The floor doesn't have that issue as bad since there's so many components attached to it to keep it from resonating (except for the rear cargo area, that's next on my list!).

That's not the problem, it's just road noise and wind noise. Nothing really vibrates.

 

[gamefreakgc]

That's not the problem, it's just road noise and wind noise. Nothing really vibrates.

Yeah, that's the resonating. Same concept, outside noise hits the door panel and it moves, creating noise. Doesn't necessarily need to be rubbing on something or to be loose. Anything is better than how it comes stock though!