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Discussion Starter #1
I've got a new fuel pump on, new suspension, and I'm on the hunt for replacement seats from the junkyards. Next thing to do is knock the rattles and clanks and general cab noise down a little bit. My Suzy has no floor pads, carpeting, or anything- just bare metal. I drive 100% on dirt and gravel roads and it's NOISY in the cab!!!! WHAT?!!! I SAID....IT'S NOISY!!!! Conversation is impossible.

I've built up the tailgate seal to help keep it from rattling and that helped a bunch, but I still have a ton of noisy rattles and rock clinks. I guess next step will be to put a rubber pad in the back and some rubber floor mats down and see what happens.

Any other suggestions?
 

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Discussion Starter #3
That'll kill some of the noise? Makes sense but I hadn't thought of that.

Since I don't have carpet anywhere, I could spray the entire interior! :)
 

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Can you buy that stuff in spray cans?

We went out to the desert this weekend. Drove nearly 400 miles. We did some shooting in the desert so we had hearing protection. We were half deaf by the time we got to the desert from the noise in the Sammy running at red line in 3rd gear for a lot of the drive to keep up with traffic. On the way back we wore our noise canceling shooting ear muffs. I really need to also do something about all the road noise in our Sammy. Rattles are few, but a lot of road and wind noise. Wonder if the spray on bed liner cuts down a lot of the road noise?
 

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want to cut out all the other noise? Run a real aggressive mud tire. The drone from the rubber will drown out everything else. :p
The bed-liner stuff I've seen is roll on or have it spray on by the pros.
(those picts do look dam good.) I wish I had done mine years ago.
Not sure what all you are hearing other than stones hitting the bottom. My front calipers rattle... drives me nuts. I just never get around to replacing them.
Are you talking about the windows rattling, or the the doors, or the top flapping, or the junk in the back? Do you know what the noise is other than the rocks? The rock noise could be the tires you have are picking them up more than other tires.
 

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Discussion Starter #8
Are you talking about the windows rattling, or the the doors, or the top flapping, or the junk in the back? Do you know what the noise is other than the rocks? The rock noise could be the tires you have are picking them up more than other tires.
I hear the tailgate rattling, the top flapping, and the top's support cage banging. The engine whines, too, but that's okay, I guess. I think most of the noise comes from the tailgate and the support cage. I could rubber mount the cage and see what happens. It's a lot less noise when I have the back flap rolled up, I guess because it gives the noise a place to escape. I have a Radio Shack decibel meter- will get a rating next time I go out.
 

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I have a DB meter from RS too. Glad you mentioned it. I will test at freeway speed and bet it is above a harmful level! I think most of my noise is wind and motor whine, plus a moderate amount from the mud tires, but the tires are not as bad as the rest.
 

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Two main things. One is you need to know how the top goes on correctly.
Two are things you can add to take up any slack with a loose/stretched out top.
tailgate = adjust, then replace weatherstripping
top = pull it as tight as you can get it with the velcro straps in the back. I used to put the foil insulation above my head between the factory bars/cage and the top. you know, the bobble wrap two sided foil stuff. It helps in the winter and summer. I also used to have it under the carpet back when I had carpet. Put single sided black sticky foam insulation between each snap along the back and sides. Again, helps also keep out the cold. Make sure you have pulled down the sides that slide down the grove as far as you can get it... it matters. That is what makes it tight against the targa bar.
The little velcro things that go around the bow should not be missed. They hold the top to the bow so it doesn't flap.
the velcro over each door should be pulled as tight as you can get it. if the velcro doesn't light up just right I've seen people put foam pipe insulation around the parts just above your head.
The reason why it's quieter with the back open is the air has a place to go out. (air pressure & just plain ol wind) Notice how it changes with the windows up? :) Try the windows up and the back open. Think about it like this, with the windows open you are trying to fill up a big balloon. With the back open the air is going out the back, causing the sides to wave in the breeze. I've had mine from new in '87 and have a lot of miles on it. I think I've every stupid trick I heard. Some worked, some not. Mine hasn't been a daily driver for quite some time.
I'm sure there are some other things I've forgot and others tricks others on this list they can add...
But then, maybe you just need a louder radio. :lol:
 

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my doors, windows, and top are all tight and I cut foam rubber mat for my floor. most of the noise I have is just engine noise, but I like to hear it roar.... umm... scream. The engine you can quiet down with a muffler. simple thing that a lot of people overlook. They either put on some high flow preformance job or a glasspack, and it's really not necessary. If you like to listen to your engine scream then by all means keep it loud, but for people that want a quiet ride... dampen the exhaust noise.
 

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One thing the thick spray-on bedliner does is decrease the heat coming off of the trans tunnel. If you have carpeting you may not notice as much, but if you are down to bare metal you can almost cook an egg on the trans tunnel after about 20 miles on the road. The bedliner will keep the heat down.
 

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I spent $14 on outdoor carpet from Lowes, I think I bought a 5' or 6' long section. Cut it down to the shape of the bed area, and the area where floormats would normally go up front and I was pretty surprised at the noise supression difference just from that. I'll do the bedliner once I have my rust cut out and replaced with good metal but this was my quick easy fix for sound and keep mud out of the holes. LOL
 

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Another option for the floorboard, doors, and firewall.

http://forums.corral.net

Rather than reading all 9 pages of the thread, the recommendation is to use either Quick Roof from HD or Peel & Seal from Lowes. There are some good images of the stuff installed for the curious.
 

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Ok, for this to work turn up the volume on your computer so that you can barely hear a person 18" away from you talking loudly. As I reviewed this video I think a chunk of the noise is actually exhaust noise. I did notice after the roll over is seems to have more exhaust noise. Need to check if maybe something got tweaked on the exhaust and got a leak.

I think this video also shows the hairiest part of our trip; passing a truck! Man, it takes a long time to pass a truck that is doing 65. LOL. Got to have a long clear stretch for that.


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also keep in mind you are in a big tin can/speaker. Everything gets magnified.
Plus, we aren't talking a $60,000 luxury SUV with a bunch of sound proofing. Make sure your exhaust isn't leaking or touching something else, put in a quite muffler and point it out the back - slightly down.
Every so often I spray everything down with WD40. Springs, shackles, the works.
 

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I agree with BillJohn about the spray in liner. I had it applied just as BillJohn did but I have no idea how he manages to keep his so clean:D

Two other considerations about the spray in bedliner:

First, it isn't cheap. Mine was professionally done and cost about $500.

Second, it does add a surprising (to me, at least) amount of weight.

Having said that, I would do it again in a heartbeat.

Bruce
 
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