Re: '72 Cheyenne K10
Today I spliced in a 4-wire trailer plug. I used correctly labeled/colored wires that I saved after installing the American Autowire kit.
I also replaced the speedometer cable and removed the speedometer gearbox. The gearbox leaked really bad, and the dash showed double the actual speed. I need to take it for a test drive and see how accurate the speedometer reads now.
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