Is the the press for the 2 rubber bushings on the outside of the differential that are used to isolate/suspend the differential in the carrier? If so, yes I have the tool you need for most W124s. Which model do you have? Also, I have some extra new bushings that I would sell, too (long story on why I have extras).
Let me know if we are talking the same thing and then we make arrangements.
Thanks,
Lee Zook