So this evening I installed the drive shaft, had to abort last night as I did not have long enough M12 bolts. 1/2 American is close but just a bit big. The German tranny yoke was quite demanding with its bolt reqs. Suffice to say it is in. Funny how a single easy part to install can really motivate you. I got all jacked up putting in the drive shaft. Who knows I might even make this thing run yet.