Thanks Jerry, the above link shows the gauges and I was able to print it off. I should be able to make this work now.
One link shows the two amp meter wires hooked to the same post on a connector, I can't see how that would work, but I do see how the original worked.
I should be able to mimic that. I'll put a couple of small fuses in each of the lines so I don't burn anything up if I'm wrong.
I had a 66 Pontiac Catalina one time caught fire when part of the charging system failed and the alternator overloaded the amp meter in the car.