Repairing Temp. and Fuel gage Indication on a 1969 Dart Swinger 340

Yes please. Let me know what each terminal is. With key on the middle ignition terminal has 12v on the back of the cluster. Vertical slot nearest middle of the car was a ground. Assuming vertical slot on drivers side is the 5v tab?
That is correct, This picture posted earlier by Trail Beast tells the tale.. Note the gauges feed on the left of photo. Condenser slots in the 12V IGN spade.

Ground is obvious as it forms part of the silver casing.

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