Now I know why 904 was having issues

The milk jug stuff works good for the outer seal. It ssems like credit card thick stuff wouldn't fit. It's that dang inner seal hanging this up. Since its lip is facing away from the chamfer on the inside of the piston it seems like you wouldn't need to help it any. I even used a .008". feeler gauge to see if that would work. It fits and is just stiff enough to be able to work it around. Using both of these at the same time and pushing pretty damn hard (putting most of my weight into it), it still won't go.

I just wanted to put both clutch packs together today and I can't even get past step two!

I must be doing something wrong.

I need beer.