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Author Topic: Spark Plug wiring diagram 84 GMC Sierra, 350/TH400  (Read 910 times)

Offline 84GMCSierra

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Spark Plug wiring diagram 84 GMC Sierra, 350/TH400
« on: February 26, 2023, 07:28:05 AM »
Hello all. I am looking for a plug wire routing diagram for my 84 GMC Sierra, with a 350/TH400. It has the stock manifolds, but my wires now are draped everywhere. I understand they are supposed to go under/behind the manifolds? Does anyone have clear pictures, or diagram of how they are supposed to be routed, including any brackets etc.? It would be greatly appreciated.
Thanks
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Offline VileZambonie

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Re: Spark Plug wiring diagram 84 GMC Sierra, 350/TH400
« Reply #1 on: February 26, 2023, 08:47:11 AM »
See attached
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Offline 84GMCSierra

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Re: Spark Plug wiring diagram 84 GMC Sierra, 350/TH400
« Reply #2 on: February 26, 2023, 12:19:49 PM »
Thanks so much. Hopefully I can now get my wires straightened out, lol
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