Voltage regulator questions

[fireguyfire]

Hi gents; I have a couple of questions regarding the voltage regulator in my 1940 1/2 ton.

when I got my truck the wiring harness had basically disintegrated and the voltage regulator was missing.

I sourced a 6 volt voltage regulator from a guy who has a few parts trucks, and I think it came out of a 42 or 43.

The holes in the voltage regulator don’t seem to line up with any existing holes in my firewall. Can someone post a photo up of your firewall showing where the regulator mounts?

And secondly, is there a way a guy can bench test a voltage regulator to know its good before I mount it into my truck? If so, how can I test it?

[Young Ed]

There are 2 styles. One has all 3 connections on one side and the other is 2 and 1. Which do you have? I believe you need the all 3 on one side type

[fireguyfire]

I have all 3 on one side .