Just finished the chassis and gearbox for my 22T that I just ordered last week from A main. The diff out-drives had machined faces at the diff ring interface. From the video about the new 22 2.0 I got the impression that this was a new spec for the 2.0. Nice to see it in the 22T kit.
I built it MM, and I have to say the instructions and hardware could be laid out better. Also noticed that there are two tranny screws at the rear of the chassis plate that the instructions do not tell you to install. At least the screws are in the bag to finish the tranny install properly.