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Old 09-19-2020, 11:19 PM   #19
Bigblock50
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Join Date: Aug 2020
Location: Luray, VA
Posts: 35
Re: 72 GMC 2500 - electrically dead!

Your description is clear, no picture needed. Super-helpful. I will trace the heavy gauge black wire -- I'm pretty sure it goes to an "AUX" junction box on top of the DS fender.

Honestly, I should have taken a picture of what all this wiring looked like before I stripped it out (perhaps a little too quickly). After purchase in 2016 I immediately had to fix all the rear end lighting and trailer hitch wiring which were a frightful mess, a fire ready to happen. I left the spaghetti under the hood alone because it was so far off the wiring diagrams. But when this fusible link fried (thank goodness in a parking lot) I decided that was it. Hopefully getting it back to the the simple original setup will work out. It will sure look better.

I'm attaching a photo, not really the best. I'll get a better one done soon.

Thanks for the help. I'll report how it all turns out.

Bill
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