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Headlight Switch 68 vs 70 521

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This is Ridiculous.. the 68 521 headlight switch has 5 pins, the 70 parts truck 521 has a 4 pin...


Often parts suppliers dont recognize a 521 in 68 they only show 520, I bet the 520 had a 5 pin



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I'm pretty sure the 4 pin is the heater switch...


Maybee the Dude before me got into the wiring, cause it was in the dash and had the little light on the knob and everything.. Thanks...

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For what it's worth I have a 521 (year unknown) diagram of the six terminal plug, with four wires to it. Two red and two green/blue. The red #1 terminal goes to the fuse box, the red #4 goes to the headlights. The green/blue #6 termial goes to the fuse box, the #3 green/blue goes to the parking lights circuit.


The wiper motor has five wires, but a different shape plug I think.

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