Topic: 64 1/2 ignition switch configurations

[Bluepony]

I finally got the ignition switch removed from my 64 1/2 coupe F code (260 V8) and was planning on replacing the switch and cylinder.  I found that the wires coming out of the plug had quite a bit of insulation missing, so also decided to replace the plug with a new plug pigtail (see attached picture).  Upon receiving the new switch and plug pigtail from CJ Pony Parts, I found that the original switch had 3 lugs and the new switch had 4 lugs, and the original plug had 4 wires and the new plug pigtail had 3 wires.  My car does have a generator (I believe the original).  Does anyone have thoughts about how I should handle this?  Does someone make a 3-lug replacement switch?  I could use some liquid insulation on the wires and probably re-use the plug, but I would prefer replacing it.  The black/green wire from the original plug is not included in the new plug pigtail.  I can terminate it with a spade lug and plug it into the 4th lug on the new switch (outside the plug), but I'm not sure this would produce the correct circuit(s).  Li'l help here?

[jwc66k]

Have you got a copy of the "64 Mustang Electrical Assembly Manual"? I see the answer but there is more to your question.
The second point is sort of sensitive, avoid CJ Pony.
Jim

[Bluepony]

I have the assembly manuals for 67-68 but not 64.  Guess I should make the investment.  Do you have the answer to my questions?  Also, I have had pretty good luck with CJ Pony, I'm curious of the reason for your recommendation to avoid them.

[jwc66k]

The 64 Electrical Manual shows four wires to the ignition switch, three in a connector (actually four) and one to the center stud. (You need a magnifying glass to read color codes.) It seems you may not have the correct connector type.
Jim

[midlife]

It appears you procured the wrong ignition switch replacement plug.  Every 64.5-66 had 3 lugs and 4 wires coming out of the molded connector plus the ring connector that attaches to the ignition switch post on top.  4 lug switches are 1967, IIRC.
The 64.5 ignition switch plug is somewhat unique in its color coding of the wires.  If you want a usable used one, I have a couple in stock.