I seem to remember that some of the aluminum front planetary assemblies had a Torrington bearing where the sun gear butts against the inside of the planet gears assembly.
If this is the case you don't use a metal thrust washer between the planetary set and sun gear shell, as it will make your clearances too tight.
From what I can see in the first pic it doesn't have a Torrington bearing inside it.
I also remember there being multiple places the tangs of the washers would fit, but in some orientations they wouldn't sit flat like they should.
They had to be turned to find the right place where they sat flat.
