Switch question for rear defroster

toolmanmike said

Factory defrosters had a 2 speed fan. There is a resistor coil at the motor that some think is a heat coil.

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The 66’ a body for the Barracuda may have been 2 speed. But the resistor is not mounted on the blower motor like the 67-76 model. Because they are so rare - very few people actually have that info.