Well, I hate to say it but I have never taken a tranny out of a 124 body myself. I do not do R&R work. The last transmission I pulled was probably near twenty years ago.
But we do pull trannnies out of those cars at least once a month so I think I can say that those doing it use a wobbly socket on a three foot extention with either a airgun or a big breaker bar/pipe. Hard on the tools sometimes but easier I hear than a BMW that uses some goofy bolts.
Bosch Master, ASE Master, L1
33 years MB technician