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Old 01-21-2024, 12:05 PM
1950Mercury 1950Mercury is offline
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Default 1966 GTO wiring

Does anyone have any advise on who sells a good under dash wiring diagram for a 66 GTO or can take a picture of one and forward or email to me. I only really need the under dash at this point.

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Old 01-21-2024, 02:09 PM
Cammer-6 Cammer-6 is offline
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get a 66 factory service manual
It will pay for itself the first time you use it.

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Old 01-21-2024, 09:09 PM
gtospieg gtospieg is offline
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Our host sells M&H wiring harnesses. That's all you'll need unless you're adding all kinds of aftermarket stuff to your current wiring.

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Old 01-22-2024, 06:59 AM
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Kenth Kenth is offline
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Right click save and expand:
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Name:	1966 GTO electric diagram.jpg
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ID:	626940   Click image for larger version

Name:	1966 instr..jpg
Views:	44
Size:	70.4 KB
ID:	626941  

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Old 01-22-2024, 12:46 PM
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Greg Reid Greg Reid is offline
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The wiring prints in the '66 shop manual aren't as good as some of the later years in my opinion but when combined with that color laminated print that Kenth just posted you really need them if you're doing your own work. A picture of a wiring harness is useless IMO.

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