1969 Z28 Sound Dampening Installation Question - Team Camaro Tech
Interiors Upholstery & soft trim

 
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post #1 of 5 (permalink) Old Jan 11th, 20, 02:24 PM Thread Starter
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Kenny
 
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1969 Z28 Sound Dampening Installation Question

I'm getting ready to install sound dampening in my interior and have a question about what others have done in the trunk area. Has anyone added some sort of a physical barrier between the back seat and the trunk to better isolate the interior from the trunk, and then applied sound dampening to whatever barrier you added? Maybe attach the barrier to the existing metal bracing that the rear seat is attached to? Just looking to see if anyone has done something like that to improve the effectiveness of sound dampening. Thanks.

Kenny
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post #2 of 5 (permalink) Old Jan 11th, 20, 02:34 PM
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Garth
 
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Re: 1969 Z28 Sound Dampening Installation Question

Nothing fancy, I just added a layer of jute insulation on the inside (cabin side) of the factory style cardboard divider.

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post #3 of 5 (permalink) Old Jan 11th, 20, 10:57 PM
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J.R.
 
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Re: 1969 Z28 Sound Dampening Installation Question

I know most folks probably wouldn't do this, but since I don't have a numbers car, I welded a sheet of 1/8" steel plating I had laying around across the entire back braces (trunk side) covering up the entire back seat area. Epoxied it and then covered both sides entirely with sound proofing/deadening. I then covered the trunk side with a layer of black fabric using spray adhesive. I figured that the added metal welded in would help the torque of the big block from being as twisty on the body. Other than that, I added sound proofing /deadening to the entire interior ( firewall, floor, doors etc. ) also while the entire upholstery was out during a total rewire. I put it everywhere except for the roof since I did not remove the headliner. Might eventually do the roof, but not anytime soon.

J.R.

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post #4 of 5 (permalink) Old Jan 12th, 20, 05:28 AM
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Don
 
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Re: 1969 Z28 Sound Dampening Installation Question

I made a backseat filler panel of 18 gauge steel and covered it with dynamat. I have a fold down rear seat so I covered the cabin side with vinyl. Trunk was dynamated and carpeted. This is the quietest first gen I have owned. The steel is heavy, would use aluminum next time.

Don

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post #5 of 5 (permalink) Old Jan 12th, 20, 05:31 AM
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Dave
 
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Re: 1969 Z28 Sound Dampening Installation Question

Quote:
Originally Posted by Garfields Maro View Post
Nothing fancy, I just added a layer of jute insulation on the inside (cabin side) of the factory style cardboard divider.
X2. Plus sprayed the entire interior with sound deadener and then added layer of sound deadener on top of that

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