<center><img src="http://ebay1.ipixmedia.com/abc/M28/_EBAY_641897816076f74548036b608d608ae5/i-1.JPG"></center><p>
(Not mine just refering)<ul><li><a href="http://forums.audiworld.com/4000/msgs/8857.phtml">http://forums.audiworld.com/4000/msgs/8857.phtml</a</li></ul>

Why wouldn't this setup work for my 90 quattro?

Its designed for a "B3" series Audi.
1988-1992 80 90.

2B makes a "kit" which can be adapted to fit your 1994 90(B4) Audi.

Also take a close look at your rear suspension, and you'll see why. ;o)

Yours-
<img src="http://194.87.53.210/imaudivw/small/VAG029D7.gif" border="0">

B3-
<img src="http://194.87.53.210/imaudivw/small/VAG0292B.gif" border="0">

For one, thats for a FWD typ85/89 chassis. Your typ8C quattro has a very different rear suspension. Control arms + wheel bearing housing vs twsit-beam axle, different "pick up" points, etc.

Also, your front struts are slightly different than the typ85/89, and even the early 8B (CQ 20v). Sway bar is attached at a different point.