Here you can see the little screws for adjusting the centering wedges.
I'm not sure why he got so fancy.
I was going to either have to make some very fancy spacers or remake the part so that it was like the original crank end.
I knew before I'd recieved my parts that I'd have to reduce the length of the prop extension, but didn't realize my method of bolting the flywheel on would no longer work.
I decided to remake that part as one solid part (no adjusters) with tight tolerances.