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73-87 Chevy _ GMC Trucks => Electrical => Topic started by: c10rick on November 04, 2016, 05:51:13 pm
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I was having a challenge identifying the terminals on the back of an oil gauge for a 1985 C10. Finally identified them with the wiring diagram: Looking from the front, the hot is at 9 o'clock, the sending unit wire at 3 and the ground at 6.