I prefer to trade for a 3:08.1 with either a Quaife or Wavetrac.
(If you have one of those rare bolted 3.08s I will consider cash plus your stock diff with similar mileage)
However, I will sell whole diff outright for $2500 shipped (CONUS).
I live in Jacksonville, Florida and will knock some $$ if you want to come pick it up.
***** Diff came from a 5/09 build 6AT car and had about 6k miles when I bought it. Has about 1500 miles on it since Quaife install.
Thanks