It has the step in, but there isn't enough clearance. The washer is .062 which seems to be stock, the snap ring is .060 even. I also tapped the cam fully seated, there was about .006 under there. Now it won't allow a .0015 feeler gauge.

I suspect the drum, because the cam is fully seated, and the washer and snap ring still don't have clearance. This is a genuine Sonnax shaft support, so I imagine that it's true.

What's your take, sir?

EDIT: I asked a couple of sellers of remanufactured drums to pull a measurement of that step in, the most common measurement I've gotten back is .088. The one that came in this trans measures .020.

New drum is on it's way. I decided to replace the sprag, as well, just in case. I'll post how it continues once the new parts are in.