12-21-2014, 02:27 PM | #1 |
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Join Date: Aug 2014
Location: Kansas
Posts: 37
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Cab noise!
Hey all. So this has been bothering me lately.
So my cab is extremely noisy inside, how have some of you combated this issue? My rocker panels are both shot and I think that's the biggest problem but I am not sure. Would replacing them help? Along with maybe sound deadening the cab? I'm just not sure, because the doors on the thing are so... Anti air tight? Haha they're in decent shape they just kind of suck. So I guess I want to know what I should do? It's unbearable at 60mph for over 10 minutes Thanks for the help, hopefully
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1989 Isuzu Trooper - 230000 miles 1968 c20 - 292 straight six - fourth owner - 96000 1978 400ci small block PROJECT |
12-21-2014, 04:13 PM | #2 |
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Location: San Jose Ca
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Re: Cab noise!
Rockers, door fit, door seals, wing windows, sound deadender, and rear sliding glass can all add to the noise.
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12-23-2014, 08:05 PM | #3 |
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Join Date: Aug 2012
Location: Fort Campbell, KY
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Re: Cab noise!
I think those rockers and floors are a huge source of your road noise. Fix those, patch any other holes and sound deaden with a coating or adhesive backed deadener (or both) along with weather strip and you should be good to go! :-)
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12-23-2014, 08:20 PM | #4 |
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Join Date: Aug 2014
Location: Port Orchard WA
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Re: Cab noise!
It looks like you could get some road noise from the floor.
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12-23-2014, 08:45 PM | #5 |
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Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,978
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Re: Cab noise!
I'd start out with replacing the rotted metal and putting a new weatherstrip on it. That's probably going to get you a lot closer to where you want to be.
Something else you might consider is where your mufflers are. If they're up under the cab, you'll get more noise from them as well. |
01-13-2015, 09:26 PM | #6 |
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Join Date: Aug 2014
Location: Kansas
Posts: 37
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Re: Cab noise!
Thanks for the replies! Can these trucks actually get decently quiet inside the cab? Hard to believe right now. haha
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1989 Isuzu Trooper - 230000 miles 1968 c20 - 292 straight six - fourth owner - 96000 1978 400ci small block PROJECT |
11-01-2015, 09:20 PM | #7 |
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Join Date: Mar 2015
Location: san rafael california
Posts: 202
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Re: Cab noise!
my truck is also noisy inside the cab, but all the trucks ive ever drove that have a relatively original stock setup are a completely different story. they got something right originally with these trucks, man those stock trucks ran quiet. NO vibrations and as little noise as todays trucks. i wish i knew what the factors were so i could make mine quieter.
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11-03-2015, 02:08 AM | #8 |
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Join Date: Jun 2006
Location: Maple Valley, WA
Posts: 1,913
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Re: Cab noise!
Well on my former boss's 57 cab I shot four coats of rubberized undercoating underneath and four coats inside the whole cab minus the areas to be painted. Then covered it all in dynamat and I mean every square inch of it. Then a heavy jute backing with marine grade carpeting. All that and all new rubber its very quiet considering there is a 680HP BBC in it.
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noisy cab, rocker panels, sound |
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