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!
“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.”