New wiring for our ‘67 B’cuda

67Dart273 said
If you have a transmission (and you should) with a 3 pin NSS that is "it." If you don't have a pigtail, you can get them from NAPA and other places. Center pin runs up over the transmission up the firewall and routes to one of the push-on connectors on your starter relay.
The Two outer pins are reverse switch. Route either outer pin to switched power, and the remaining one back to the reverse lamps. Normally that wire comes up the firewall, through the bulkhead connector, and over to the left kick panel connector, and on back to the reverse lamps. No idea how "whoever" harness routes that.

Thanks for trying
I think 67 or prior didn’t have a 3 pin
This is the picture of my connectors and no gear **** lamp selector lamp

67Dart273 said
If you have a transmission (and you should) with a 3 pin NSS that is "it." If you don't have a pigtail, you can get them from NAPA and other places. Center pin runs up over the transmission up the firewall and routes to one of the push-on connectors on your starter relay.
The Two outer pins are reverse switch. Route either outer pin to switched power, and the remaining one back to the reverse lamps. Normally that wire comes up the firewall, through the bulkhead connector, and over to the left kick panel connector, and on back to the reverse lamps. No idea how "whoever" harness routes that.