Day 7 bonus notes;
If you are building or plan to build your Powerglide I highly recommend H P Books "Powerglide Handbook" written by the late Carl H. Munroe.
This is an excellent, excellent reference containing many photos and many race upgrades that are both helpful and easily performed. His family continues the transmission business and they have all the special tools and hardware the book brings out. Check them at TSR Racing Products.
The reverse piston photo shows a screw driver pointing at a small dot. Get your copy of the book to learn about it's function.
Also see the parking pawl and related pieces in place, nothing to it, one step at a time. The last photo show reverse clutch pack in place topped by the ring gear.
So, how do you take several boxes of parts and transform they into a Super 10 transmission?
You do it one step at a time