rewiring engine bay, question on diagram

There are differences over the years and between 2 speed /variable speed / 3 speed.

My "standard answer" is consult the factory shop manuals, and the Passion site

http://www.passion4mopars.com/

. Sometimes you need to consult the correct year of factory manual, and ahead and behind. You can download the 72 and 73 manuals WHICH CAME FROM guys on FABO over at MyMopar I have a 74 and 76 paper manual, but not electronic. So far as I've found, the 73 is the latest you can find "free."

The diagram you posted is NOT of Mopar origin. It is a "3rd party" diagram. Some of those are indeed easier to follow, sometimes, but they also often leave connectors out, as well as some options