Hi again.

If you have the 5-dial instrument cluster, that was only used on cars that came with pony interior or with the GT package in 65, so, it is possible that it's actually right for your car, but, if the alternator gauge has a couple of wires sticking out of it, it isn't all that likely. Some pictures of the areas that I mentioned would sort that out. Since your car has an automatic transmission, it should have a neutral safety switch on the side of the transmission which will have four wires coming out of it. Two will be the black wires with what appear to be purple stripes which are for the back-up lights, and the other two will be red with blue stripes. There should also be two two-prong connectors sticking through the firewall to the passenger side of the master cylinder, which is where the wires from the neutral safety switch plug in. You could by-pass the neutral safety switch by running a jumper wire from one side of the firewall connector to the other side, and that will probably get your car started, but, it is never a great idea to by-pass components that have words like Safety, Hazard, emergency, and such in their name.

Here's a picture of what you're looking for.
