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strange 12bolt making alot of noise

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Old 02-12-2007, 07:06 AM
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Default strange 12bolt making alot of noise

i have a strange 12bolt in my 92 and its always made noise since i got it but i didnt think anything of it, but today it started making a discusting noise on coasting. im pretty sure the ring and pinion are not set up properly. what should i do? does strange have any kind of warrenty? i hardly ever drive the car and they already replaced the pinion seal under warrantry.....

any opinions?

ryan
Old 02-12-2007, 09:35 AM
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Noise is a common problem with a 12-bolt, especially after hard launches. Mine is noisy while coasting, but not too bad under acceleration or deceleration. I've learned to live with it.

Since the pinion seal has been replaced, the first I would do is check the pinion nut & see if it has backed off at all. If it has backed off, either use some red loctite on it or peen the nut with a ***** punch.

Hope this helps.
Old 02-12-2007, 10:21 AM
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well i do launch the car at 3500rpm at the track once ever couple of months. im going to have to check the backlash and pattern when i get a chance....but i cant turn my stereo up loud enough. lol
Old 02-12-2007, 04:11 PM
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Originally Posted by ss1
Noise is a common problem with a 12-bolt, especially after...
... not being set up properly.

Last edited by chicane; 02-12-2007 at 05:09 PM.
Old 02-12-2007, 04:55 PM
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I was more or less referring to one that was set up by Strange. It just seems to be too common of an occurance. I'm not saying they'll never be quiet. I agree, if set up properly, they should be quiet.
Old 02-12-2007, 05:08 PM
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Yup... Strange or Moser for that reason. Around these parts, it is a common occurance.

I forgot to put a smilely in there... as not to single out your reference to the 12 by itself.
Old 02-13-2007, 11:25 AM
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My moser and a friend's recently installed moser has noise, on cruise or decelleration, when you on the throttle you cant hear it. Disclaimer in Moser's litature was due to the metal used in the ring and pinion. Both rears were set up by moser.
Old 02-13-2007, 11:58 AM
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yea i had a 20 minute conversation with strange and they said because of aftermarket torque arm and bushings the noise would be louder. but i had all that crap with my 10bolt. so im going to try the thicker fluid and see if it quiets down.
Old 02-13-2007, 01:42 PM
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Metal used in the ring and pinion....
Sounds like an excuse for a lack in attention to detail.
Old 02-13-2007, 02:26 PM
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A properly set up rear really shouldn't make much noise at all. If something is out of alighment though, or if its improperly set up, the noise will be very apparent.

I'd have a reputable shop that is experienced with rear ends take it apart and have a look.
Old 02-13-2007, 02:27 PM
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I'm running two quarts of Lucas 85w140 and one quart of their "thick as molasses" oil stabilizer, and still have a noisy rear end

GMfan, do you have a Strange or Moser 12-bolt in an F-body?
Old 02-13-2007, 03:02 PM
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Originally Posted by ss1
I'm running two quarts of Lucas 85w140 and one quart of their "thick as molasses" oil stabilizer, and still have a noisy rear end

GMfan, do you have a Strange or Moser 12-bolt in an F-body?
My car personally??

Neither, I still have the stock 10 bolt
Old 02-13-2007, 03:16 PM
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Unfortunately, like we've discossed before, F-body 12-bolts just seem to be noisy. Some people have had them checked and redone, only to have the same condition afterwards. I think "should" is the proper word to use, any rear end "should" be quiet when set up properly, for some reason these 12-bolts get the best of us.




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