63 Dart 904 with rear pump thrust washer question

Hi all.
　
[ame="http://www.myfigtree.com/trannyoutputshaft/endplay.avi"]http://www.myfigtree.com/trannyoutputshaft/endplay.avi[/ame]
　
I reassembled the shaft without the washer on the backside of the rear planetary gear assy and can get the circlip in place and it looks right. I did notice that the one I did not put in has a weird wear pattern with only the outer half of the washer showing wear as the other two show even wear all across their surface. I have added the following video showing the wear pattern and also the end play that I notice when I move the shaft back and forth without that one washer.
Please let me know what you think I am mucking up on.
Thanks
John