The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)

- The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=4)

- - 1978 GMC 350 4X4 Wiring info wanted (https://67-72chevytrucks.com/vboard/showthread.php?t=815438)

irl104

12-08-2020 01:57 PM

1978 GMC 350 4X4 Wiring info wanted

I got a 1978 GMC 350 4X4 truck and needing some help with cut wiring. Coming out of the fuse box through the cowl panel. Wiring cluster under the hood that mounts to the fuse box. It goes to the engine and lights. Anyone have a schematic that shows or explains what wires goes where? Thank you for any help.

irl104

irl104

12-10-2020 06:10 PM

Re: 1978 GMC 350 4X4 Wiring info wanted

Anyone?

bhc41051

12-10-2020 06:32 PM

Re: 1978 GMC 350 4X4 Wiring info wanted

Forum member "hatzie" has a wealth of knowledge on wiring and all things squarebody. Scroll down the first post of this link and you'll see links to wiring diagrams, manuals etc. http://67-72chevytrucks.com/vboard/s...d.php?t=754061

irl104

12-11-2020 06:39 PM

Re: 1978 GMC 350 4X4 Wiring info wanted

bhc41051

Thank you very much for that info. That's what I was looking for.

irl104

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