xterraracer,

I am curious about how you identified RiNkY's differential as a 4 spider diff. The service manuals for 05 thru 07 indicate that there are only 2 "pinion gears" in the locking differential for the XTerra (and the Titan also) - Nissan refers to the spider gears as "Pinion Mate Gears". Also for the locking diff the "differential case assembly" which contains the spider (pinion mate gears) and the side gears is a non repairable part (as you stated) and cannot be disassembled.