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Old 08-02-2011, 09:57 PM
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68 GTO Wiring Diagrams and Hide-a-way Headlights Vacuum Source

Hello, My name is sam. I am finally finishing a 68 GTO restoration. I am seeeking information as to where to get a wiring diagram for this car and also can anyone help out with the vacuum source to operate the hide-a-way headlamps.

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Old 08-03-2011, 07:00 AM
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Cannot help with the wire schematics, 68 Goat would be pretty straight forward depending on options. What I am saying is GM is GM and you could use just about any wire digram of the year. The source for the vacuum will be off the manifold.
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Old 08-03-2011, 04:58 PM
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Here you go...

1968 GTO Wiring [PDF]
(The last page includes a diagram of the headlight door vacuum circuit. Note the check-valves. Those are very important.)

1968-69 GTO Hideaway Headlights [PDF]

This is from the Headlights PDF:

Item 45 is the vacuum canister. If yours is missing, the headlight doors will probably not operate.
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Last edited by Pantaz; 08-03-2011 at 05:07 PM. Reason: Added details
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