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.
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.
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 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.
