3502414 control switch was only used on 73 thru 76 Valiant ,Darts and Dusters. How about posting the month and year of manufacture on the left door decal.
Wow - thanks - that's interesting that that switch was only used on 73-76's... Appreciate the update. Perhaps the person in CO where this car originated from had swapped out the original heater control unit for a 73-76 model as you've indicated. The unit fits in dash fine and the fan works - it's just that the temperature control cable wasn't connected to be able to defrost the windows. Attached is a pic of the side of the unit too.
There is no left door decal since the car was restored in CO. All I have is the VIN on the car and the title that shows it's a '72. Maybe the 73-76 units were interchangeable with the 72's... You wouldn't have a picture or switch number for the 72 model by chance would you? I'm not trying to restore the car to factory originals - it's a clone car (was a slant 6 with a column shifter but the guy in CO who restored it dropped an '84 360 in it and moved the shifter to the center console...