I changed front and rear diff myself. It was a bit messy and took the better part of the day, but definitely doable! Changing it every 12k miles is retarded though. Every 25k-30k is plenty. Some people even say that once you changed the fuid out and put in some high quality oil (Amsoil) you dont ever HAVE TO change it again. I will continue to change mine every 25k-30k miles though.
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2005 CRD Sport
Mods: Glasspack, OME HD Struts & Springs, 2" Daystar lift,
255/70/16 General Grabber AT2's on MOAB's
ORM&EHM with great success!
TJM T17 Bumper, 50W KC HID's
