Just my 2 cents, but judging from Dart1917's drawing....
there is a snap ring on each side of the bearing, one in the groove on the input shaft, the other in the groove in the bearing cage.
I would make it that way and then try to put the bearing cage into the main housing without the big thrust washer. If it does go in, something on the other side of the thrust washer might not be right. Else wise, that input shaft is not going far enough into whatever it goes into.
