Ammeter and Alternator Upgrade Questions

[Justinjob]

My truck's alternator has been previously upgraded to an internally regulated unit. I have a few questions pertaining to the stock ammeter gauge;

Where should the needle on the ammeter gauge normally point with the original alternator?

Where should the needle on the ammeter gauge normally point with an upgraded alternator? Is it bad for it to be close to the "C" side?

What is the scale of the gauge?? More specifically, there is "D", for discharge, and "C" for charge, how many amps + or - on either end of the gauge (50-60 amps???), and is the center 0 amps?

In hooking up the gauge, I ran into some confusion as to where the wires for this gauge go, my original harness has been hacked up, some wires are missing, among them being the plug and wires that went to the old ext. voltage regulator. So, I know that there are two wires coming from the gauge, one is a fused black wire, and the other is a fused black/white wire. They are under the hood waiting to be routed to where they need to go. Where do these two wires need to be hooked up as to get an accurate reading on my ammeter gauge?

Thanks,

Justin

[JimKshortstep4x4]

The standard alternator was 37 amps and the AC altenator was
63 amps, not sure if there were more options. I have 63 amp alternators on some of my trucks and the gauge does not peg, so my guess would be that the gauge is set up plus or minus 60 amps. I have never seen a spec on the gauge however.

When your battery is fully charged, the gauge should be at neutral with the engine running at a fast idle and no accessories on.

The two ampmeter leads read the voltage drop over the main power feed and should be tied into the feed on the left side of the radiator and terminated to the junction block on the right side fender. The two wires should be part of your harness and it is just a matter of plugging it in to the back of the gauge panel if you have the gauge harness setup.

Let us know what you have for wiring.

Jim