Any AC Techs

slantsixdan said

The clutch cycling switch in the '65-'72 factory heat/AC system is controlled by the temperature slider lever (which also operates one of the air doors on the heater box). Find what moves on/near the box when you operate the temp slider back and forth. The clutch cycling switch has a small-diameter copper sensor tube buried between two fins of the evaporator, so that's another way you can find it. But it sounds like yours might be missing.

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Found it Dan! I traced down the cable and it is attached to a bellcrank lever, by the blower motor resistor, and goes back to the left side of the radio. If it works might be a different story.
Also, my car does not have a heater control valve on the inner fender, like other cars I've seen. Did some cars not come with them, or do I have to start looking for parts for that too? It has 3 vacuum lines but no mounting holes on the inner fender.