By "dropping the tranny" your Tech meant he lowered it to gain access rather than removing it. Not sure how the tranny sits in the tunnel on a 124, but on a 126 there is planty of room to work.
If you'd have done this DIY, parts would have set you back about $2.00.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.