[200q20v] Rear Diff D-Shaft Seal?

Bernie Benz b.m.benz at prodigy.net
Fri Apr 20 08:08:42 EDT 2001

Apparently, there two types.  One for engine oil, and one for ATF.  I first
discovered the effectiveness of this treatment on auto trannys, but you want
to use the engine/lube oil treatment.


> From: "Hemberger, Chris" <CHemberger at stanadyne.com>
> Date: Fri, 20 Apr 2001 08:30:53 -0400
> To: "'Bernie Benz'" <b.m.benz at prodigy.net>
> Subject: RE: [200q20v] Rear Diff D-Shaft Seal?
> Ahhh  - the 'ol fix-it-in-a-can'..  I've considered that & in fact I will
> probably try it.  As you say, it's cheap enough and there is little lost if
> no results.  Are there different grades/types of this additive for differing
> applications?  In other words, are there treatments for engines vs.
> gearboxes?..  Thanks for the input.  ..and I too despise ANY fluid leaks.
> Chris
> -----Original Message-----
> From: Bernie Benz [mailto:b.m.benz at prodigy.net]
> Sent: Thursday, April 19, 2001 4:43 PM
> To: Hemberger, Chris
> Cc: 200q20V mailing list
> Subject: Re: [200q20v] Rear Diff D-Shaft Seal?
> Chris,
> A KISS corollary to my "Don't fix it if it ain't broke" philosphy is "Always
> try the simple fix first".  I hate with a passion any and all oil leaks, and
> in 30+ years of fighting same, I've learned that most rotary shaft seal
> leakage can be eliminated/controled by the use of chemical seal restorer
> products, seal replacement being unnecessary.
> Add 1/2 can of engine seal restorer to the rear diff. and the other half to
> the manual tranny and drive for 1K miles, gunk everything clean and check
> again for leaks.  A cost effective fix at $5.
> Bernie
>> From: "Hemberger, Chris" <CHemberger at stanadyne.com>
>> Date: Thu, 19 Apr 2001 14:05:45 -0400
>> To: "'200q20v at audifans.com'" <200q20v at audifans.com>
>> Subject: [200q20v] Rear Diff D-Shaft Seal?
>> Anybody have any experience in replacing the driveshaft/input seal on the
>> rear differential?  Mine appears to be leaking and just wanted to know
> what
>> I'm in for if I opt to do myself?  Special tools required?  As usual -
>> thanks in advance for any assistance.
>> Chris Hemberger
>> 200Q 20V Avant
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