okay all knowing smart ass, go buy the diff, have it profesionaly installed in the vehicle(properly shimmed with correct tolerences) etc, NEW nissan seals, New nissan bearings
So sure, go get the diff, have it sit in your room. in the pretty little nissan box and jizz all over it.
tell me the finaly price with all new hardware and labour then call me.
but so true, it funny how people assume all you need to do is buy the part and it magicaly apears on the car. i can see how people think this way when all they do is shop for part prices online.