Thank you for that!
I also got help from member on the Facebook group, Church of the L series also mentioned that it was a Datsun specific plug. I’m going to copy what he said if someone else needs this info, thanks again!
Riley LynchburgNissan:
“These were not an existing industry standard type of connector that Nissan adopted. It was apparently a Datsun design, and was unique to the 74 Datsuns. In 75, they switched to a plastic Japanese standard connector called the Yazaki YPC. Those can still be found in 2 to 8 pin configs except for the funky one on the headlights. But the rubber ones are a no-go. I have been looking for them for many years with no success.”