synergx@IBM.NET writes:

<< Todd can no doubt tell us why it's a bad idea to bore a couple
     of holes through that partition....  >>

If I understand correctly this is the partition in the case that
supports the pinion and mainshaft front bearings.  It also
divides the case into differential section (with the drain plug
stuck on the bellhousing) and the gear section (with the fill
plug up on the side).  I believe that there are enough/big holes
to allow the oil to drain adequately but would have some
structural concerns for bearing support should you go wacky
with a drill.

Besides, its way easier to drive the Van up on some ramps
to get the nose in the air for better draining and to drill into
a trans case!

One other thing to consider.  Try opening the fill plug first
before draining the oil.  The weight of the oil and the air rushing
through that large external hole might be enough to force a
couple more oz. of the old stuff out.   Just a thought....

-Todd Hill
 VolksWerks Transaxles
 Olympia, WA
 360-412-0948