I want to lower my Quattro Audi A4. Anyone know much about the drive system?

My knowledge of Audi innards is glancing, but I do know there’s an Audi Club based out of Portland that should be able to get you in contact with good info and likely good shops. http://www.audiclubnw.org/

You rock! Thanks a million. I searched high and low. I must be loosing my touch.

If you’re not a member of VWvortex, you should join. I’m not too familiar with Volkswagens but I’ve got a Honda S2000 which is significantly lowered. The only problem my car sees from lowering and changing the suspension geometry is wear on the drive shaft couplers but there’s a fix called a drive shaft spacer they sell for ~$150. I believe all cars will see slightly more wear on the bearings from lowering but I’ve been driving lowered cars for almost 8 years and have never had to replace a bearing.

Here’s a thread that should help you out a lot.
http://forums.vwvortex.com/zerothread?id=621342

right, but the audi is fulltime all wheel drive.

Of course. Why does this concern you more than if it was rear or front wheel drive?