FYI, I installed a 722.3xx in my 1993 300e which has an M104. The transmission I picked up was a low mileage one from what turned out to be an e280 which has the 2.8L version of the M104. I had to swap out the tail housing of the transmission to install the speedometer drive, but other than that it bolted in place fine and I've been driving it for the last six months without any issues.