I got the 17mm allen socket from BD for 3.50.  When I used Royal Purple gear
oil, the container comes with the 'pointy" top and was easily emptied w/o
spilling a drop from under the van. Downside, I had to buy two bottles since
one is not enough to refill. The Right Stuff worked easily, quick, and
inexpensively.  Benn checking for the last couple of days and not a drop on
the driveway.

p.S. When I went to take down the pan on the final drive, the bolts were
removed VERY easily and the oil gasket was cork.  Would not be a bad idea
for folks to get under there and at lest snug up those bolts.
Michael in San Antonio
91GL AT 'Gringo'
73 Beetle