Rear subframe 1990 CQ/90Q the same ?

Wed Apr 17 08:28:07 PDT 2013

You're welcome.  Sounds about right.

Personally, I would do it a little different.  While you are in there I would do a couple of other maintenance items.

I would pull the rear axles and repack the CVs, inner and outer, and new control arm bushings.  So the order I would take the rear end apart is:

Loosen outer axle nuts while car is on the ground, don't remove yet.
Remove bolts for inner CV joints.  These will be triple star head bolts.
Remove bolts for the end of the drive shaft.  Support it, so it does not hang.  These bolts are allen head bolts.
Remove ball joint bolt and tie rod nut.  The tie rod nuts are a fine thread, so don't lose them.  Bag them with note.
Remove axle nuts, pop ball joint out of hub carrier, and remove axles.
Disconnect the vacuum lines from the Diff lock.
You don't need to unbolt the diff from the rear subframe.
Remove subframe bolts and remove subframe, diff, and control arms as one unit.  There is a special washer on one of the diff mounts, remember where it went.

Now you can take apart the diff from the subframe, and do the reverse to put back.

It is sometime easier to remove the brake calipers from the hub carriers, and hang them.  Remove the rotors.  Makes working in there a little easier.

Greg W.

-----Original Message-----
From: Marco Weibel <wemaca at gmail.com>
To: bluemaxww1 <bluemaxww1 at aol.com>
Cc: quattro <quattro at audifans.com>
Sent: Wed, Apr 17, 2013 6:41 am
Subject: Re: Rear subframe 1990 CQ/90Q the same ?

Thank you Greg !
This time i have it sandblasted and powder-coated prior to installation.
Is the job as straight forward as it looks from underneath ?
It is the first time i tackle this specific task...
Disconnect balljoints, tie-rods and stabilizer bar from control arms maybe some brake lines? then support the differential and remove the 3 bolts holding the diff to the subframe and the 4 bolts holding the subframe to body then lower the diff and pull the subframe out towards the rear.
Remove the control-arms on the bench.  
Any special tools required ?

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On 2013-04-16, at 10:03 PM, bluemaxww1 at aol.com wrote:

yes, CQ, 90 20V same
No, later ones are a different rear suspension.

Greg W.

Subject: Rear subframe 1990 CQ/90Q the same ?

Hello

Patient: 1990 90Q20V

The rear subframe is totally done.Do later 1992 to 1995 90V6Q subframes work too?

Regards
 Marco

Sent from my iPhone
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