gauge cluster mods

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Coobie

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San Diego
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Matt
Truck Year
1979
Truck Model
C10
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350 but doing an LS swap
Lmfao $40 vs. $1300... :Bye:

Mmm.Dolly Parton!
I had to listen to this album Soooooo many times in childhood.:(

How much you got in yours @Coobie ?
What did you spend @Raider L ?

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$775 From Summit Racing
 

Raider L

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Shreveport, LA
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William
Truck Year
1974
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C10
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355
Those pull handles are aircraft radio rack pull handles I got when I was a aircraft mechanic some years ago. I found them very handy when I need to get the panel out without worrying about messing something up behind the panel.
 

Michael Benardo

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Vallejo, California
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Michael
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1973
Truck Model
C 25
Engine Size
292 Cubes
Granted I'm new here, and surely not the first guy to want this. I gave sincere effort at the search feature but it doesn't work?

Boils down to I need a tachometer in place of a five inch diameter fuel gauge. Seems ridiculous beyond any manner of comprehension. In a perfect world the gas gauge would occupy space of the (I assume) oil pressure light. Reality is that I have no desire for a speedometer at all, I'd swap it for tach in a heartbeat.
I don't know much about it but I guess I need a manual trans cluster or something? Yeah. Easier said than done, I'm sure.

Will someone be kind enough to link a thread about this subject or provide aftermarket solution? I joined this site for the wealth of knowledge. This is my first Square and a step towards 73-75 k5 or CUCV.

One of the last things I would ever do is run a tach that reads to 10 grand...LoL.
Classic Parts of America and LMC Truck Parts both sell printed circuits for instrument clusters with a Tach and gauges, as well as the tach and a small gas gauge that goes where the clock normally would go. It was a factory option when our Squares were new.
 

75gmck25

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Northern Virginia
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Bruce
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1975
Truck Model
K25 Camper Special TH350 NP203
Engine Size
5.7
If your truck has a factory amp gauge there are several articles that explain how to convert it to use a voltmeter from a newer truck. I did that on my '75 GMC and it was a simple job.

The old GM amp gauges use a wiring shunt to measure /calculate amperage draw and as soon as the truck wiring degrades you will have an inaccurate gauge. The simple explanation is that the gauge is measuring the voltage drop across a known section of the truck wiring, and then converting that voltage drop to display amps. The amp gauges weren't that accurate when the truck was built, and you will never get them to read right on an older truck.

Bruce
 

Frankenchevy

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Square
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CUCV
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Small
$775 From Summit Racing
I think he was referring to the model of Dakota Digital gauges I posted up. They’re the newer version that are a bit more pricey. IMO, they look really nice. Added kicker is I can hook the gauges up with a single CAN-bus harness from my proflo.
 

Michael Benardo

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Location
Vallejo, California
First Name
Michael
Truck Year
1973
Truck Model
C 25
Engine Size
292 Cubes
If your truck has a factory amp gauge there are several articles that explain how to convert it to use a voltmeter from a newer truck. I did that on my '75 GMC and it was a simple job.

The old GM amp gauges use a wiring shunt to measure /calculate amperage draw and as soon as the truck wiring degrades you will have an inaccurate gauge. The simple explanation is that the gauge is measuring the voltage drop across a known section of the truck wiring, and then converting that voltage drop to display amps. The amp gauges weren't that accurate when the truck was built, and you will never get them to read right on an older truck.

Bruce
I wish I knew how to convert it from a voltmeter to an amp gauge. I like amp gauges.
 

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