Can anything quiet down a moser 9inch?
06-12-2006, 09:12 PM
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Can anything quiet down a moser 9inch? Im running a moser 9inch with a spool and 411 gear ratio. The whine on the high way is pretty brutal. Can i put thiker diff oil in to quiet it down or is this just the trade off of a bullet proof rear end?
06-12-2006, 10:19 PM
#2
Pretty much the nature of the beast....12 bolt, 9 inch...some are more noisy than others. The only solution would be a new gear set/bearings and those would probably make noise as well also after some track time.
To lessen the noise you can always go back to a stock stamped steel torque arm...that cuts out a good 50% at least.
To lessen the noise you can always go back to a stock stamped steel torque arm...that cuts out a good 50% at least.
06-13-2006, 05:28 AM
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Originally Posted by keliente
To lessen the noise you can always go back to a stock stamped steel torque arm...that cuts out a good 50% at least.
06-13-2006, 02:11 PM
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You can try having the gears re-set. I had to do that with mine. Most of the time the noise can be improved. Performance gears will always have some whine though. Mine's not noticable with the stereo on at what I would call a normal volume.
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06-16-2006, 05:32 PM
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Sawdust works wonders 
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06-18-2006, 10:49 AM
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im running a moser 9 inch with a strange center section with 4.30 gears and a spool, it is quite with no howling. scott did a great job on the setup of the center section.
06-18-2006, 11:09 AM
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Originally Posted by BIRDONNOS
im running a moser 9 inch with a strange center section with 4.30 gears and a spool, it is quite with no howling. scott did a great job on the setup of the center section.
06-18-2006, 12:50 PM
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I was going to say the same thing. If it's howling then it's not setup properly. I had this moron named Sal in california setup my Moser initially... He built the whole center section. 3.70 gears, detroit locker, billet pinion support, etc.... As soon as I put it in and took off and got to cruise the gears were HOWLING!!! I mean it was this loud whine that had to be toned down by cranking the radio. At highway speeds it was annoying to say the least.....
I take it back to him and he gives me this "Well you are running Richmond Race cut gears and they will all whine like that" spiel.... So i'm thinking ok whatever... i get a couple of opinions and then find out about a guy local to me that builds rearends out of his garage... He comes highly recommended by guys in the area that are running 7 and 8 second doorslammers... So I take out the center section and drop it off with a brand new set of 3.89's (Richmond "racecut" gears) and a rebuild kit with new bearings, crush sleeve, etc.... he gives me the center section back about 5 days later looking beautiful.... drop it in, drive it.... haven't heard it since.... That was 5 years ago... Still hasn't made a sound.... people that tell you that gears whine are covering up their lack of ability at setting backlash....
I take it back to him and he gives me this "Well you are running Richmond Race cut gears and they will all whine like that" spiel.... So i'm thinking ok whatever... i get a couple of opinions and then find out about a guy local to me that builds rearends out of his garage... He comes highly recommended by guys in the area that are running 7 and 8 second doorslammers... So I take out the center section and drop it off with a brand new set of 3.89's (Richmond "racecut" gears) and a rebuild kit with new bearings, crush sleeve, etc.... he gives me the center section back about 5 days later looking beautiful.... drop it in, drive it.... haven't heard it since.... That was 5 years ago... Still hasn't made a sound.... people that tell you that gears whine are covering up their lack of ability at setting backlash....
