Sound-proofing 69 Stepside - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Red69stepside · 07-11-2004, 11:33 PM

Anyone got any great ideas on quieting down my ride?

It only came with a flimsy little floor mat and there's no sound treatment on ceiling, doors, hood, firewall or floor.

What can I do here?

ZOOMY · 07-11-2004, 11:49 PM

We'll have to see pix of the whole truck before we can decide...

Lippyp · 07-12-2004, 04:23 AM

A lot of people seem to reccomend Dynamat for soundproofing, you can do floors, inside the doors, bulkhead etc with it. Getting some carpet down will help as well, but hey, it's a truck not a BMW, it was designed to do a job not to be a luxury car, just get a louder exhaust and listen to the engine or a big sound system!

67chev · 07-12-2004, 05:05 AM

There are some other threads on here that also recommend either a product called "Brown Bread", or another product called "Raamat". I think they are very compariable to Dynamat, "brown bread" claims to be better than Dynamat, and a hell of a lot cheaper!!

www.raamaudio.com
http://www.b-quiet.com/brownbread.html

Hope this helps a little.

JimKshortstep4x4 · 07-12-2004, 06:52 AM

In addition to the areas for sound material installation, do the back wall behind the gas tank. If you go with a head liner and soft door panels, this helps, also.

Jim

mocwon · 07-12-2004, 08:36 AM

Here's what I did with a Dynamat knockoff from E-bay. I don't know the results yet since the truck isn't done.

JimKshortstep4x4 · 07-12-2004, 08:58 AM

Mocwon,

Nice job!

Jim

**lock** · 07-12-2004, 09:37 AM

Mocwon, how much square feet did it take to cover your cab? I see brown bread in 10.5 sq ft and then 35 sq ft.

Red69stepside · 07-12-2004, 10:25 AM

Mocwon:

What is this stuff called? How much did it cost?

75-K5 · 07-12-2004, 12:17 PM

I heard this stuff was good:

http://www.quietcoat.com/index.html

mocwon · 07-12-2004, 02:47 PM

The stuff I bought off Ebay last year was a Dynamat knockoff but I don't remember the name. It was $100 + $25 shipping for 100 sq.ft. I have enough left to do the inside of the doors. The only thing I didn't like about it is that it required heat to apply and it took quite a while to install it.

This stuff looks like a better deal and it is pressure sensative:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=38638&item=7909508447&rd=1&ssPageName=WDVW

mocwon · 07-12-2004, 02:55 PM

Apparently, I need help with the Ebay item link above...

damage · 07-12-2004, 04:30 PM

Link

Looks Interesting. Thanks mocwon.

1-PU70 · 07-12-2004, 08:25 PM

Not to steal the thread but has anyone tried to insulate between the two layers of the roof?

stickshift_or_walk · 07-13-2004, 04:12 PM

Quote:

Originally Posted by 1-PU70

Not to steal the thread but has anyone tried to insulate between the two layers of the roof?

Good question. I'm running an ABS headliner that holds 4 speakers and covers the whole headliner area. I drilled a 3/4" hole to run the wires through, and while banging around up there, I noticed how hollow it sounded and thought I should do something about it.

I had used the canned expanded foam called Great Stuff on several projects around the house, so I had some handy. I shot some through that hole, then got a longer tube and pushed it up through the openings at the back of the cab into the front, middle and sides. It held a couple of cans of the minimal-expanding foam. They also have a version that expands a lot more, but I was afraid it might ooze out somewhere I didn't want it.

It made a big difference, and cost about 12 bucks. Now if the floors and doors were that easy...SSOW

lewi · 07-13-2004, 04:55 PM

I bought the Brown Bread recently but have yet to install it. From the checking I did it looked like the best stuff. Do a search for Brown Bread and you'll find som more info.

toddtheodd · 07-13-2004, 06:11 PM

I must have it all backwards. I took it all out to save weight.
It's not a 1/4 screamer, but it'll blow the doors off of the ricers at the green light.
Now I just need to lose a hunder pounds off of my fat a$$.

1-PU70 · 07-13-2004, 06:13 PM

I thought of using the expanding foam but was afraid it would bow the roof.

07-11-2004, 11:33 PM	#1
Red69stepside Registered User Join Date: Jul 2004 Location: Washougal, WA Posts: 110	Sound-proofing 69 Stepside Anyone got any great ideas on quieting down my ride? It only came with a flimsy little floor mat and there's no sound treatment on ceiling, doors, hood, firewall or floor. What can I do here? Attached Images __________________ 69 Stepside. Rebuilt 327, HT 350 tranny, Holley carb, Edelbrook intake; Flowmaster dual 2.5-inch exhaust.

07-11-2004, 11:49 PM	#2
ZOOMY Senior Member Join Date: Feb 2003 Location: WIS Posts: 1,752	pix We'll have to see pix of the whole truck before we can decide...

07-12-2004, 04:23 AM	#3
Lippyp English Chevy Owner Join Date: May 2002 Location: Shropshire, UK/ Lot, France Posts: 1,848	A lot of people seem to reccomend Dynamat for soundproofing, you can do floors, inside the doors, bulkhead etc with it. Getting some carpet down will help as well, but hey, it's a truck not a BMW, it was designed to do a job not to be a luxury car, just get a louder exhaust and listen to the engine or a big sound system! __________________ Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission

07-12-2004, 05:05 AM	#4
67chev Registered User Join Date: Apr 2004 Location: Spokane, WA Posts: 458	There are some other threads on here that also recommend either a product called "Brown Bread", or another product called "Raamat". I think they are very compariable to Dynamat, "brown bread" claims to be better than Dynamat, and a hell of a lot cheaper!! www.raamaudio.com http://www.b-quiet.com/brownbread.html Hope this helps a little. __________________ "SicStee8" Chevy SWB Fleetside, in progress...500 HP 383 w/TriPower, 700r4, 3.73's, Lowered, Shaved Driprail/sidemarkers/handles/ant, Gonna rock!! '96 Chevy Tahoe 4X4 '84 Chevy C/K10 4X4 (FOR SALE)

07-12-2004, 08:36 AM	#6
mocwon Keep On Truckin' Join Date: Mar 2003 Location: Buda, Texas Posts: 1,354	Here's what I did with a Dynamat knockoff from E-bay. I don't know the results yet since the truck isn't done. Attached Images __________________ Just Passin' Thru Some projects are like herding cats; others are like putting out fires; this one was like herding cats on fire.....

07-12-2004, 06:52 AM	#5
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	In addition to the areas for sound material installation, do the back wall behind the gas tank. If you go with a head liner and soft door panels, this helps, also. Jim

07-12-2004, 08:58 AM	#7
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Mocwon, Nice job! Jim

07-12-2004, 09:37 AM	#8
lock Insert funny comment. Join Date: Dec 1999 Location: Concord NC Posts: 621	Mocwon, how much square feet did it take to cover your cab? I see brown bread in 10.5 sq ft and then 35 sq ft. __________________ ------------ - Mark -My Build Thread... -68 C10, LT1 - Undergoing Frame off resto -86 IROC-Z T72 turbo 355, M6 -70 Camaro http://www.iroc-ss.com Last edited by lock; 07-12-2004 at 11:02 AM.

07-12-2004, 10:25 AM	#9
Red69stepside Registered User Join Date: Jul 2004 Location: Washougal, WA Posts: 110	product name? Mocwon: What is this stuff called? How much did it cost? __________________ 69 Stepside. Rebuilt 327, HT 350 tranny, Holley carb, Edelbrook intake; Flowmaster dual 2.5-inch exhaust.

07-12-2004, 12:17 PM	#10
75-K5 Bucket of Bolts Join Date: Dec 2003 Location: Anderson, Indiana Posts: 455	I heard this stuff was good: http://www.quietcoat.com/index.html __________________ This is the project that never ends, yes it goes on and on my friend....

07-12-2004, 02:47 PM	#11
mocwon Keep On Truckin' Join Date: Mar 2003 Location: Buda, Texas Posts: 1,354	The stuff I bought off Ebay last year was a Dynamat knockoff but I don't remember the name. It was $100 + $25 shipping for 100 sq.ft. I have enough left to do the inside of the doors. The only thing I didn't like about it is that it required heat to apply and it took quite a while to install it. This stuff looks like a better deal and it is pressure sensative: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=38638&item=7909508447&rd=1&ssPageName=WDVW __________________ Just Passin' Thru Some projects are like herding cats; others are like putting out fires; this one was like herding cats on fire.....

07-12-2004, 02:55 PM	#12
mocwon Keep On Truckin' Join Date: Mar 2003 Location: Buda, Texas Posts: 1,354	Apparently, I need help with the Ebay item link above... __________________ Just Passin' Thru Some projects are like herding cats; others are like putting out fires; this one was like herding cats on fire.....

07-12-2004, 04:30 PM	#13
damage Registered User Join Date: May 2002 Location: Greer, SC Posts: 82	Link Looks Interesting. Thanks mocwon.

07-12-2004, 08:25 PM	#14
1-PU70 Registered User Join Date: Apr 2000 Location: Bradenton, FL Posts: 1,036	Not to steal the thread but has anyone tried to insulate between the two layers of the roof? __________________ 1970 CST/10 402,700R4,3:73 posi,AC,PS,PB,TLT,PW,Buckets with heaters

07-13-2004, 04:55 PM	#16
lewi Registered User Join Date: Nov 2002 Location: Redding California Posts: 223	I bought the Brown Bread recently but have yet to install it. From the checking I did it looked like the best stuff. Do a search for Brown Bread and you'll find som more info. __________________ 1971 Chevy Cheyenne 383/350 LWB 2wd Built to use, and look good.



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07-13-2004, 06:11 PM	#17
toddtheodd The oddest Todd around Join Date: May 2004 Location: Miami, Florida Posts: 1,418	I must have it all backwards. I took it all out to save weight. It's not a 1/4 screamer, but it'll blow the doors off of the ricers at the green light. Now I just need to lose a hunder pounds off of my fat a$$.

07-13-2004, 06:13 PM	#18
1-PU70 Registered User Join Date: Apr 2000 Location: Bradenton, FL Posts: 1,036	I thought of using the expanding foam but was afraid it would bow the roof. __________________ 1970 CST/10 402,700R4,3:73 posi,AC,PS,PB,TLT,PW,Buckets with heaters

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