I just posted two web pages about this work with lots of pictures in the column on the right side, and here are the direct links:
I did not rebuild the rear drive or transmission, just refinish them. I did have to work on the transmission kick start and shift lever tapered bolts as they were very hard to remove due to scratches and burrs.
Here are a couple of the before and after pictures from the web pages.
Rear Transmission Grunge
Top Transmission Grunge
Bottom Transmission Gunge
Polished Parts
Refinished Transmission Rear
Refinished Transmission Top
Refinished Transmission Bottom
Refinished Transmission Left Side
Rear Drive Before Cleaning
Brake Shoe Orientation
Refinished Rear Drive Brake Shoe Side
Refinished Rear Drive Outside