Need to renew the front crank oil seal on a '91 350SDL.

M-B 602/603 Service Manual states the hub is pulled off the crankshaft journal with M-B tool # 103 589 00 33 00.

Is this tool an absolute must for this job?

Hate to start the work only to find that a special tool is required... but in many cases I've found that service can be accomplished without the special tools M-B lists in their service manuals.