Is your housing toast? If not I have a set of new g2 alloy shafts and a full spool with 4.88s. I could also include front 4.88 for the rubicon 44 axle.
the housing is more then likely toast. under power it runs find but the second I go to coast it sounds like its eating the gears. More then likely the pinion or the bearing is gone. its been raining too much for me to get out and pull it apart and see. (no garage to work in).