1967 Dart GT wiring system

Just look at it and follow the PC board traces.

You can download a free shop manual at MyMopar

If you post a good clear photo of the rear of the cluster, we can guide you along

See if these work, found these photos of a 69 online

http://i1364.photobucket.com/albums...F-D137-49F2-A5EB-2973283B94AC_zpsvdnx0bft.jpg

http://i1364.photobucket.com/albums...2-7ABB-4285-B50A-E656A5CAE5AE_zps9kqzshq6.jpg

http://s1364.photobucket.com/user/W...A-49ED-9520-3C8709A3BBEE_zpsh6xdaz0s.jpg.html

OK, so the top photo is the complete rear, "opposite" from the front view, at bottom. The two mid photos are simply enlarged

Let's take the oil light, eg "far right" in the bottom photo, far left in the third photo down

If you follow the traces to the socket connection, you see that one goes to the far left pin there on the harness connector.

the second trace from that socket leads to the same connector, the pin second from the right

So take that and refer to the shop manual wiring diagram