73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: billywilly92 on September 20, 2009, 06:44:37 pm

Title: Swapping Gauges
Post by: billywilly92 on September 20, 2009, 06:44:37 pm

Right now I have a gauge cluster out of an 86 with the speedo and fuel. I have a gauges cluster out of an 81 or 82 I think with the speedo, tach, fuel, volt, oil, and water temp that I want to install instead. Now how do I make this swap work? I searched around on here and I know a bunch of you know how to do this.

Title: Re: Swapping Gauges
Post by: Captkaos on September 21, 2009, 06:25:30 pm

Verify all your pinouts on the harness plug, if they are incorrect swap them out and plug it in.  you will need the Tach harness or a wire going to the tach portion of the cap.

Title: Re: Swapping Gauges
Post by: billywilly92 on September 22, 2009, 06:00:10 pm

What do you mean verify pinouts? Do I need to make sure that my gauges circuit matches the plug? Like all the ends on the plug match up to a plug on the gauges circuit?
I have the tach wires too and they plug right in where they are supposed to so that is taken care of.

Title: Re: Swapping Gauges
Post by: Captkaos on September 23, 2009, 03:07:27 pm

Yes, all the pins in the plug have to match or you wont get any readings.  If you started with dummy lights most of them will have to be moved.

Title: Re: Swapping Gauges
Post by: billywilly92 on September 23, 2009, 05:18:56 pm

Will buying a new circuit for my year of truck fix the problem?

Title: Re: Swapping Gauges
Post by: Captkaos on September 24, 2009, 12:35:02 pm

the printed circuit on the cluster fix it so you don't have to verify/repin?  NO.

Title: Re: Swapping Gauges
Post by: billywilly92 on September 24, 2009, 03:28:15 pm

Ok so it doesn't matter what circuit I have, I have to repin it no matter what? I haven't looked at mine yet but what if mine doesn't have enough pins or does that not happen?

Title: Re: Swapping Gauges
Post by: Captkaos on September 24, 2009, 04:26:31 pm

It will have enough, but their location changed based on what cluster options you had.

Title: Re: Swapping Gauges
Post by: billywilly92 on September 25, 2009, 05:49:30 pm

So how do I figure out which goes where? Is there a wiring diagram for the circuits and gauges from each year?

Title: Re: Swapping Gauges
Post by: billywilly92 on September 27, 2009, 09:12:34 pm

Does anybody have or know where to get instrument cluster wiring diagrams?

Title: Re: Swapping Gauges
Post by: Captkaos on September 28, 2009, 02:50:52 pm

In the technical section of this forum.