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Old 12-08-2012, 09:05 AM
Oilyrascal Oilyrascal is offline
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Need some advice with gauges

Looking for some advice on what I may encounter with my plan and here it is, pictures below are the gauges Click this bar to view the full image.out of a mid eighties F-whatever pick-up, Click this bar to view the full image. and here is my wiring schematic Click this bar to view the full image. Click this bar to view the full image. for the harness I installed in the truck.....

I am electrically dumb but it appears that there are no other outside relays gadgets or gizmos that I need to make these gauges work?

It appears after reading about wire # 35 that all I need to do is jump off of that single wire down to the positive side of the gauges and then run whatever sensor wire I have coming from the engine/fuel tank to the other side of the gauge.......

I know it just can be this simple!! Am I wrong?

I will be fabricating these gauges into an existing 52 faceplate ( I hope ) and just need some advice on what I am missing.

Also how do I tell which of the terminals on the rear of these gauges is positive, I am thinking that it does not matter, am I right.

One other question, I still will be using ( trying until you tell me otherwise ) my original 52 fuel tank sending unit, what am I going to run into there......I believe that the sending units are calibrated to the gauges as a matched pair, so does that mean it will not work at all or does that just mean its gonna give me a funky reading in which I will just have to get accustomed to over time but can learn to recognize and fill the tank accordingly.

Thanks again guys for all of your help!!
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