1968 turn signal switch wiring help???

[TnMike]

Have a 1968 bronco that I put a c4 and a 75 auto column. I bought a new turn signal switch from Northeast Classics. I am trying to wire it to Bronco. I have a chart with wire colors for a 1968 but they are not the same as mine. In particular I have 2 red wires that run to same slot in the connector. I am really having trouble. Any help appreciated. Thanks Mike

 

[DirtDonk]

Right off the top, a couple of things that will be different are the horn contact(s) and the added light wire (Blue w/red stripe) for the PRNDL illumination.
But the other unfortunate thing is that lots of inconsistencies crop up in the different manufacturers, and even Ford could not get it consistent starting in '73.

Is the turn signal switch for the '75 I hope?
What type of steering shaft and joints/couplers do you have? (That question will be regarding grounding the shaft for the horn button)

Next, please list the actual wire colors in the two(?) square connectors of the '68 body-side of the harness AND the colors in the turn signal switch.
That should get us started down the rabbit hole...

Paul

 

[pcf_mark]

Dirt Donk has you on your way. I had to do this when I converted to A/T using an unknown Ford Van column. I used a continuity tester on the column to figure out which circuit was activated by the switch to create a map for the new column. Then I took the Bronco hot lead and ran it to each cirucit in the wiring to figure out the truck wiring. Then I jumped the wire the hot on the truck to the hot on the column and jumped each circuit one by one and tested as I went. Took a little while and I had to make a few changes. The brake lights threw me. Once done I re-pined the van column to the bronco wiring and I think I had to make a small jumper for something else. Good drawings help your sanity.