In a message dated 11/23/98 10:19:47 AM Pacific Standard Time, smitht@unb.ca
writes:

<<
 I am the one with the modified front diff.  You need a donor rear locking
 trans to pull the servo,shafts,and ring carrier.  Swap your current ring
 onto the locker.  Machining takes about 4 hours, mostly setup work. You'll
 need a set of metric tooling, drills/taps/reamers to get it perfect, but a
 good machinist could  certainly work it with USA units if some
 planning/conversions were done. You need to reset the lateral depth of the
 ring via the bearing carriers, not as hard as resetting the pinion meshing
 depth! >>

Thanks alot Tim for the great info, I saved the info for future use.  If you
come across another front diff, I'd be interested in having you do the
conversion for me, since you know what you are doing with the machining. I can
handle the rest.  My darn VC isn't working very well at all any more.  I'm
going to call German transaxle pretty soon to get a price on a new VC.  I'll
do the install myself at work. Maybe I'll send my unit to you for the lockable
diff  conversion.  You should seriously consider doing the conversion as a
side job. I'm sure a lot of syncro owners on the list would be interested.
Todd Hill is making good money now. He started out in his garage, ( still is
in his garage).
 Anyway thanks again. Keep blowing the Fords and Toyota's away.  Michael
 87 syncro
 87 quattro
 PS.  How long does it take for your rear locking diff to unlock. While
driving straight, sometimes mine take forever. Most of the time I have to pull
the knob out a couple of times and then back in again to get it to unlock.