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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: msjxx on October 24, 2006, 08:57:00 pm

Title: Instrument cluster swap wiring
Post by: msjxx on October 24, 2006, 08:57:00 pm

I need help on the wiring of an istrument cluster. I have a 74 model Chevy 4 wheel drive. I have aquired a gauge cluster out of an early 80's model 2 ton truck. The new cluster has a tach and small fuel guage.

The printed circuit on the two clusters is wired differently, so i have to rewire for the new cluster. Does anyone have a diagram or instructions?

I purchased a chiltion's online guide, but it is virtually useless. I also purchased a guide from eautorepaironline.net but they did not have my model, so i had to get the guide for an 83 model which apparently does not have the same color wires.

Please help.

Title: Re: Instrument cluster swap wiring
Post by: roundedline on October 24, 2006, 10:20:00 pm

Without a complete and total rewire, you won't get that 80's cluster to work in a 74 pickup.  Don't try to hook anything up just for a test either, you will run the risk of frying it.

Look here for info:
73-87.com/7387garage/inte...meters.htm

BTW, I use Haynes manuals for most of the ones I convert.
If you want a factory service manual, look at www.helminc.com

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project

Edited by: roundedline at: 10/24/06 9:21 pm

Title: Re: Instrument cluster swap wiring
Post by: 1976Scottsdale on October 24, 2006, 10:03:00 pm

Come on, its not any fun until you hit the left turn signal and all of the lights in/on the truck begin to blink and the fuel gauge bumps up and down.  

Title: i plan to rewire
Post by: msjxx on October 25, 2006, 11:08:00 am

I understand that it needs to be rewired, but i need a diagram, otherwise i have to figure out what each wire goes to. Can anyone help with a wiring diagram on for the 74 model?