I have a 01 rs rear diff with ~70k on it. Everything works great, I just changed ratios, and on fujis advice, just bought a new rear diff. Anyone want or need this? $70 plus shipping (from moorhead) or if you can wait I can probably send it along with a friend down to the cities. Note: the 2 studs off the rear of the diff that connect it to the sub-frame have been removed (rs are longer that WRX) so you'll need new RS ones if you're putting it in <01, otherwise I'll send the WRX along.
Pretty sure 00 and 01 RS's were standard with VLSD. Automatics got 4.44 and Manual 4.111 I could be wrong though.