For the shifter, I'm sure I put the gate plate back in. However, I might have put it backwards... This might explain why getting under 5th is super easy and using the "real" reverse is almost impossible. I can check this relatively easily by removing the shifter.

As for the flywheel, my memory is fuzzy because I did that 2 years ago and did not take much pictures. I remember removing the automatic flexplate and finding a thick spacer ring under it. But I cannot remember if I put that ring under the flywheel. I don't think I did because I recall measuring both the thickness of the flexplate and the spacer and finding out they were the same thickness as the flywheel center. I cannot find the EPC diagrams for the clutch/flywheel/transmission... If I had that, it would help a lot. I think I bought 8 new bolts at the dealer. I don't remember if there were washers or not.