[s-cars] Rebuilt driveshaft

Eric Renneisen racingiron at comcast.net
Wed May 14 18:47:45 PDT 2008

You don't have to do strictly horizontal and vertical alignment--just
two orthogonal planes.  You should be able to use your 2x6 at a 45 deg
angle to vertical on either side.  This gives you 90 deg separation on
the two measurements, so the results should be identical to a horizontal
and vertical check.

Just from my experience, however, driveshaft alignment hasn't been as
crucial as Bentley suggests (YMMV, tho).  I've even purposely misaligned
the shaft to induce vibes, without the expected result.  What's the
condition of the two CVs?  If dry, repack.

Eric R.
'86 urq
'92 urS
'93 urS

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] On Behalf Of Wayne Dohnal
Sent: Wednesday, May 14, 2008 7:07 PM
To: Fred Munro; S-car list
Subject: Re: [s-cars] Rebuilt driveshaft

For the vertical alignment of the center bearing, I took a 2x6, notched
to clear the center bearing, and drove four 3-inch drywall screws, one
each end of each driveshaft half, into it about a half inch.  I then
sure the screw heads were in a perfect straight line and held screw
heads up 
to the driveshaft to check if it was straight vertically.   That was the

easy part.

For the horizontal alignment I ran a tight string under the driveshaft 
centered under the drive flanges on each end, then checked the
alignment at the center bearing.  This was very difficult to do while
flat on the floor.  I used a level to make sure I was shooting the
reference straight up from the string.  I think I got it pretty close in
end but spent a couple of hours doing it.

All of this just happens automatically with the Audi alignment fixture. 

Wayne Dohnal
1994 S4

----- Original Message ----- 
From: "Fred Munro" <munrof at sympatico.ca>
To: "Wayne Dohnal" <wd42 at hevanet.com>; "S-car list" 
<s-car-list at audifans.com>
Sent: Wednesday, May 14, 2008 3:36 PM
Subject: RE: [s-cars] Rebuilt driveshaft

> Wayne;
> How did you align the driveshaft when you re-installed it?
> Fred Munro
> '97 S6

S-CAR-List mailing list
S-CAR-List at audifans.com

More information about the S-CAR-List mailing list