30, 41, 46, 50 amp alternators? Yeah RIGHT

The following explanation relates to the 1974 parts catalog.
The 403, 404, 406 and 411 alternators were all serviced by the 3780588. The 34 and 41 amp alternators were replaced by the 50 amp alternator part # 3780588.
You couldn't buy the original 34 or 41 amp alternator or the component parts. Only the 50 amp was available as a replacement. All of the component parts listed were for the 50 amp: 3780588.
So to repeat ; 403,404,406 and 411 were replaced by the 3780588- 50 amp alternator and only the component parts for that alternator could be purchased.
Chrysler doesn't clearly explain this in the parts catalog.