Re: IML: rear end noise

["Dick Benjamin" <DickB@xxxxxxxxx>]

This symptom is indicative of a worn pinion bearing .

Sure grip rear axles do require special lubricant, it is not normal rear 
axle lubricant.  However, I doubt the small amount you added would 
contribute to a pinion bearing problem.  If the grease level was really low, 
however, you could have starved the bearing for oil. If the "top up" took 
less than a pint or so, I don't think that would have caused the problem.

You need to take the car to a differential expert and have it evaluated.

Dick Benjamin


----- Original Message ----- 
From: "Chris Strohmeyer" <chrisstroh@xxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Tuesday, January 23, 2007 9:23 AM
Subject: IML: rear end noise


> Hi all,
> My sure grip rear end is moaning/whirring at above 30mph. If I lift my 
> foot slightly off the pedal it goes away completely.  After looking over 
> 40 years of receipts I discovered 10 years ago and 10k miles ago the rear 
> end was completely rebuilt.  I read that there's a "special oil for sure 
> grips". Isn't this just 90w gear oil?  It was a little low so I topped it 
> up but no change.
>
> Any ideas as to what this may be. I'm going to contact the former owner to 
> see if rebuilding it actually made the noise go away.
>
> Thx,
> Chris
> 67 Imperial Convertible
>
>
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