1966 Dart Ignition Switch

[SmokeJumper69]

I'm having some issues with my ignition on a '66 Dart, has a 225 /6 and everything on it is original. I replaced the ignition relay and ballast. I studied the wring diagrams and everywhere points to the ignition switch. However, I bought a switch from Napa and it has an extra prong on it, it's labeled GRD. I hooked it up anyway but it still doesn't do anything. I'm lost and could use some help. This is killing me. Thank a lot and have a great 4th of July!

 

[SmokeJumper69]

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[pettybludart]

Check your bulkhead at the firewall for corrosion.These were notorious for coorosion.Seperate and clean out the crud then spray with contact cleaner,reassemble.Can also check with a testlight for current through the bulkhead.If car starts from jumping at the starter relay with the key on,it,s the ignition thats your problem.