[V8] 91' V8 Automatic with vibration/noise

[Tony and Lillie]

In addition to the other suggestions, also check the motor/trans mounts. If 
bad, the powertrain will shift just right to rub the body/trans tunnel when 
accelerating. If this noise is not while accelerating, desregard this 
suggestion.

Tony

----- Original Message ----- 
From: "Sports Car Workshop" <sportscar at gwi.net>
To: <v8 at audifans.com>
Sent: Friday, March 20, 2009 4:12 PM
Subject: [V8] 91' V8 Automatic with vibration/noise


>I have a 91' V8 automatic that has a very odd vibration and noise coming 
>from the front (more towards the left side). It is like a trumping sound, 
>not metallic. It only makes this sound going down the road (not on the car 
>lift) especially about 35 mph. We've replaced the left side half shaft, new 
>wheel bearing, drained and refilled the front diff, rotated wheels front to 
>back in case of bad wheel - we are at a loss of this vibration noise. Has 
>antone had a front diff carrier bearing go bad to know what it sounds like? 
>or a bad diff itself? Again, it isn't a grinding sound like you would 
>expect from a bearing. Any help greatly appreciated! Corey
>
>
> Sports Car Workshop, Inc.
> 128 York St. Suite 1
> Kennebunk, ME 04043
> 207-985-6661
> www.sportscarworkshop.com