Questions about rewiring the ignition cylinder

[TSGB315]

Working on a 1967 IH 1100 3/4 ton truck and have to replace the entire ignition cylinder because the truck didn't have one when I got it. Thinking I'll have to probably order the factory one from here, but bought a standard 3 pole ignition cylinder switch from napa...

But, nothing is connected and all the wires are stripped out, so I need to know which wire goes where lol
a wiring diagram would be fantastic, but can't seem to locate one at all, so...I've attached a pic of the wiring mess. It'll crank over when ya touch the power wire to one of the white wires...but we have no spark...id love help with this one!
Nate

 

[carnuck]

Napa carries the stock switch (same as postal jeeps) I'd look for the vee shaped plug to make it easier though.

 

[Scoutboy74]

The wires were all labeled when new, but the id May not be legible at this point. Assuming that it is legible, here are the ig switch circuits:

#11 - 10ga wire originating from the + terminal of the ammeter gauge and terminating at the ig switch 'b' terminal.

#12 - 20ga wire originates from the ig switch 'I' terminal and runs to a 4-way connector where it intersects with two wires also labeled #12. One of which runs to the starter solenoid 'r' terminal. The other runs to the coil + terminal.

#14 - 14ga wire originates from the ig switch 's' terminal out to the stater solenoid 'b' terminal.

#102 - 16ga wire originates from the ig switch 'a' terminal to the fuse block which then feeds the heater switch.

#71 - 16ga wire originates from the ig switch 'a' terminal to the wiper motor switch 'b' terminal.

#129 - 14ga wire running from the ig switch 'I' terminal to the voltage regulator #2 terminal.

Good luck.