Ok, I looked through about all the threads on the S-line threads and I cant find a post for Torsens. I might have missed one as there are quite a few posts on here.
Anyway, I am looking for a new/used Torsen for my 02 S4. My rear wheels aren't getting power anymore. The drive shaft spins all way up to the tranny (with one wheel spun when it is lifted off the ground). Well if anybody know where I can get a new (and by new, I mean new to me) center diff a bit cheaper than going to Stassis, please let me know. If you happen to have a parts car laying around...... Let me know. Thank you.

 

Do you mean differential? Statis has some LSD rear and center diffs that arnt too hard on the wallet.