Ignition & Ground Wire size

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66dart225ci

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Does anybody know the gauge of the ignition wire and ground wires that connect to the switch on 66 Dart 270? I need to buy wire connectors but don’t know the sizes of the wires

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The two "push on" flag terminals for the neutral switch and the start wire are blue, AKA up to no14. (Actually I guess you could use red) These vary some brand to brand, and if the wire seems a bit loose, I strip them long, and fold the wire over double before inserting into the terminal


The "square" screw goes to the starter solenoid and I've forgetten, no. 12 or 10 so you want yellow. The wiring to the big stud varies. It is power coming to/ from the battery

Red are for no. 22/ 16

Blue are for no. 16/ 14

Yellow are for no. 12/ 10
 
The ground & ignition wires both look black. I’m not worried about the battery wire to the switch or the starter because I have the old ones that I can bring to the parts store and match to get new ones. But you think the ignition and ground wires are 12 or 10 gauge?
 
Consult the FSM wiring diagram, many years the gauge is listed with the wire color and code
 
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