Like I said yesterday, I bought 6 different 727/904 books, not a one did more than briefly mention the pushbutton. Only 66 and up transmissions are addressed in most.
I brought my binder, I’ll scan the stuff during lunch today and email you.
The Motor's manuals seem to have more information than most in a single place... I think those two plus the 64 TSM are the best. I'll have the Motor's transmission book by the end of the week. It has color coded hydraulic schematics and may allow me to get a better idea on the internal differences between the 63-64 A904 and the A904-G for 65-69
