Found it (see item #40) :
http://www.peachparts.com/shopforum/showthread.php?t=126728

I think this is the PDF mentioned, and the tool Sixto rented looks like #966-0043, although the description doesn't match:
http://www.baumtools.com/pdf/MB_Rear_Axle.pdf

The full Baum Mercedes catalog is at this URL, btw.


David's tool looks almost exactly like the one shown in this auction. Or maybe this one?

For reference, photos of the OE Mercedes tool are at this link.