67 Dart Brake Lights

Will do, I have read that the early Darts,
Not sure if 1967 is one of them has the IVR built into the temp gauge is that true?
Yours is plugged into the back of the panel. Some very earlier models had the IVR in the temp gauge. Then later on it was moved to the fuel gauge for some models.
The plug in type is standard, most common.