A few disturbing finds yesterday. The bearing for the round shaft was installed with the lip for the locking flange turned inside, it came out with the shaft. I got it off the shaft and turned it around and installed it in the case. The chain on the drive gear under the HI/LO cluster gear has chewed a trench in the case, IPL shows a washer/spacer under it but none was there. The HI/LO cluster gear calls for two needle bearings but this doesn't look like needle bearings. Maybe it's right, I haven't checked part numbers yet. It's looking like I'm not the first amateur to open this thing up, though I don't know how they did it with the right hub and bearing in place.
Cannon