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Interiors, Dash, Lights and Electrical Everything Inside

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  #1  
Old December 25th, 2019, 03:14 PM
dblessing dblessing is offline
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Default Wiring Harness same as Chevy?

Are most wiring harnesses compatible with both Chevy and GMC 1000’s? Most harnesses I find say Chevy-only but the diagrams and actual parts photos look to be pretty close to what my GMC has. My wiring is in pretty rough shape so I’d like to redo it.

Here are some example harnesses at LMC: https://www.lmctruck.com/1960-66-che...ring-harnesses
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Old December 25th, 2019, 04:38 PM
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Default Re: Wiring Harness same as Chevy?

I found this thread under related after posting this. For some reason it didn’t come up in search. https://6066gmcclub.com/showthread.php?t=46441
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Old December 25th, 2019, 06:25 PM
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Default Re: Wiring Harness same as Chevy?

Almost any of the harnesses sold will work with a GMC. I am speaking of harnesses that come with a prewired fuse box and wires that need trimmed and terminated. These are the ones most folks use. I am not speaking of some sort of pre branched, pre loomed, special factory original reproduction designed kit. Made for a purest.
You don't need to buy separate engine harnesses, cab harnesses and such. It's all in one kit like EZ-wire, Painless, American Autowire and all the rest.

If you run into a connector you need that is GMC specific, some of those are available.
Be careful with, and salvage, EVERYTHING on the old harness as you remove. Save it as intact as possible. You should switch to a ballast resistor instead of resistance wire during rewire, in my opinion. Easier. The wiring for this era is relatively simple.

Last edited by AZKen; December 26th, 2019 at 08:12 AM.
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