Transmissions and Drivetrain Need help with your trans? Problems with your axle?

9 Bolt Problems?

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Old May 10, 2009 | 07:45 AM
  #1  
bigals87z28's Avatar
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From: Ocean, NJ
Car: Check The Sig
9 Bolt Problems?

Ok, recently I swapped in a 9 bolt. Got in the car to test everything out, and there is this very noticeable wooshing/humming noise. Now I never had this before, so I assume its coming from the rear end. Now just going off experience, it sounds very close to a hub bearing noise, its the closest noise I could assosiciate with what Im hearing, so I jumped to that.
Anyone know any tricks as to find out what it could be? Im going to turn in a circle, left and right, to see if the noise goes away or gets louder.
The only thing else I could think of was possibly a brake problem, as I did have a little problem with one of the calipers.
Im worried on trying to figure out if its the axle tube bearings, or the carrier bearings. Anyway to figure out which one is the problem?
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Old May 11, 2009 | 10:12 AM
  #2  
TKOPerformance's Avatar
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Joined: Dec 2003
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From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
Re: 9 Bolt Problems?

We need some more specifics. When does it amke this noise? All the time? When accelerating? When decelerating?
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Old May 15, 2009 | 01:58 AM
  #3  
bigals87z28's Avatar
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From: Ocean, NJ
Car: Check The Sig
Re: 9 Bolt Problems?

When in motion, anything above a slow crawl.
I did some more testing, it seems that when I made hard turns left and right, that the noise goes away only when turning right, louder when I turn left. So I assume this would indicate the right side axle bearing is shot.
Any special way to perform the axle bearing service on my car compared to a 10 bolt?
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Old Jan 31, 2023 | 10:06 PM
  #4  
greyno3's Avatar
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Re: 9 Bolt Problems?

Noise happens when a few miles...drivers side. Not sure but it just shows up like a wobble sound.
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Old Jan 31, 2023 | 10:08 PM
  #5  
greyno3's Avatar
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Re: 9 Bolt Problems?

Just normal driving. It's annoying. Wa wa wa wa....
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