Jo, I know that others have done this, but if you need me to tear into the axle to measure things (balls, cages, etc.) let me know. I've been wanting to take the axle apart anyway so I can practice on it before I take mine apart to replace all of the CV boots (probably after Moab).
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong, it usually turns out to be impossible to get at or repair."
-Douglas Adams, Mostly Harmless