it's nearly as hard as licking your own elbow

or not as difficult as kicking yourself in the bollock

i have always found that the crossmember gets in the way so if you have an engine bar, hook it up, drop the crossmember from the chassis legs and on the drivers side once the suspensino is out of the way it's fialry easy to undo the 3 bolts and pull the diff out

just make sure you drain the oil first, otherwise when the diff comes out, so does all the oil