Excellent write up!
I have ordered the front seal for my tranny along with the two drive-axle stub seals.
I assume you need to remove the lower shaft and the differential to get at the left hand stub seal - is there any special re-install "gotcha's" about putting the diff and lower shaft back in???
There is a pin in the case and a matching hole in the pinion bearing......must line them up when reinstalling the lower shaft.
the upper shaft has a similar setup on the bearing that supports the front part of the shaft.
must get those lined up or it all won't fit back toghether