63 Dart 904 with rear pump thrust washer question

the rear planetary has a thrust washer behind it...and a thrust washer between the rear planetary and the sun shell or drive shell...the drive shell also has a steel thrust plate on each side of it that is held in by the sun gear....

as you said the front planetary has a thrust washer in it..and if you have not disassembled it...

Do you have access to a 727/904 ATSG manual....has good picture of the gear train..