howling?
Thread Starter
Junior Member
Joined: May 2004
Posts: 81
Likes: 1
From: modesto, cali
Car: 2001 Camaro SS
Engine: no engine yet :)
Transmission: T-56 with z06 drive gears
Axle/Gears: most likely 12 bolt or 9" with 3.91
howling?
i just picked up a 87 Z28 with a t5. the car drives great except around 55mph the rear starts to howl and it doesn't get quiet until about 75mph. is my rear about to go bye bye? i'll check the fluid tomorrow when i change the oil in it, but any input is helpful!
Senior Member
Joined: Sep 2007
Posts: 568
Likes: 1
From: Leander,TX
Car: 84 Z28 / 88 Trans Am / 87 base
Engine: L69 H.O. / 468 BBC / 2.8 v6
Transmission: 89 700R4 / TH375B / 700R4
Axle/Gears: 3.73 open / 3.23 posi / 3.42 open
Re: howling?
The carrier bearings are shot you need to look for a complete assembly, your housing is likely warped from a P/O running it low on fluid.
Thread Starter
Junior Member
Joined: May 2004
Posts: 81
Likes: 1
From: modesto, cali
Car: 2001 Camaro SS
Engine: no engine yet :)
Transmission: T-56 with z06 drive gears
Axle/Gears: most likely 12 bolt or 9" with 3.91
Re: howling?
i wonder how much i can find a complete assembly for 
or i wonder if a rebuild kit will work hmmmm Last edited by King NothingSS; Jul 5, 2010 at 03:03 AM.
Senior Member
iTrader: (5)
Joined: Jun 2007
Posts: 379
Likes: 1
From: arlington, tx
Car: 90 z28
Engine: 355 with hsr
Transmission: t56
Axle/Gears: 3.73 posi
Re: howling?
mine was howling on deceleration, maybe on acceleration but my exhaust is too loud to hear it. next thing you know the rear end locked up because the pinion nut had backed loose and the pinion smacked the carrier. take the driveshaft off real quick and check how tight that bolt is on the rear.
Thread Starter
Junior Member
Joined: May 2004
Posts: 81
Likes: 1
From: modesto, cali
Car: 2001 Camaro SS
Engine: no engine yet :)
Transmission: T-56 with z06 drive gears
Axle/Gears: most likely 12 bolt or 9" with 3.91
Re: howling?
mine was howling on deceleration, maybe on acceleration but my exhaust is too loud to hear it. next thing you know the rear end locked up because the pinion nut had backed loose and the pinion smacked the carrier. take the driveshaft off real quick and check how tight that bolt is on the rear.
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