I'm helping a friend put a rebuilt steering column back in his 66 half cab. It wouldn't shift well, and he sent it to "some guy in Arizona" to have it rebuilt. Apparently the column had been broken & brazed together at both ends of the shift tube.
The guy put a new turn signal/horn cam in and the wires don't match the old colors. Also, the wiring on the "truck" side, doesn't match the colors on the wiring diagrams I've found.
Here is what we've got. I'm color blind, so my friend came up with these colors. He said some were tough to see, so if we are wrong, sorry. The truck side harness is original.
Column side:
Blue/white- heavy gauge/horn
Yellow- heavy gauge/horn
Green/red
Green
White/blue
Green/white
Blue
Orange
Truck side:
2 wire connector:
Yellow
Green
6 wire connector:
Yellow/blue
Green (2wires)
White/blue (2 wires)
Yellow
Green
Blue/white
Thanks
66 steering column wiring
- Gunnibronco
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66 steering column wiring
"America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." ΓÇô Claire Wolfe
74-AWB 98", ZF5, Atlas4, HP609s, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, 4x4x2 hyrdo assist, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
74-AWB 98", ZF5, Atlas4, HP609s, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, 4x4x2 hyrdo assist, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
- Viperwolf1
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Re: 66 steering column wiring
'66 has some weird colors. Here are some tips to remember.
The 2-pin connector goes to the rear brake/turn lights.
The heavy wires are for the horn and they should be located diagonally across the 6-pin connector.
The pins with 2 wires are the front turn/dash indicators.
Here is a chart from TBP that will help.
The 2-pin connector goes to the rear brake/turn lights.
The heavy wires are for the horn and they should be located diagonally across the 6-pin connector.
The pins with 2 wires are the front turn/dash indicators.
Here is a chart from TBP that will help.
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- Gunnibronco
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Re: 66 steering column wiring
Thanks! That should get us on track.
"America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." ΓÇô Claire Wolfe
74-AWB 98", ZF5, Atlas4, HP609s, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, 4x4x2 hyrdo assist, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
74-AWB 98", ZF5, Atlas4, HP609s, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, 4x4x2 hyrdo assist, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
- Gunnibronco
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- Joined: Mon Jan 03, 2011 5:07 pm
Re: 66 steering column wiring
Thanks again. A few of the wires didn't match up exactly to the guide, but we were able to get it all together.
I have a couple questions. I've never taken a close look at a 66.
Is there no emergency flashers? I only found one flasher relay under the dash, and no switch anywhere.
The turn signals flash very slowly. Would a new relay help that?
The brake light switch isn't on the pedal arm like my 74. Is it on the master cylinder? Its an old single reservoir with a screw top, kinda like a mason jar. There is a switch in the end of the MC. I thought that might be it.
I have a couple questions. I've never taken a close look at a 66.
Is there no emergency flashers? I only found one flasher relay under the dash, and no switch anywhere.
The turn signals flash very slowly. Would a new relay help that?
The brake light switch isn't on the pedal arm like my 74. Is it on the master cylinder? Its an old single reservoir with a screw top, kinda like a mason jar. There is a switch in the end of the MC. I thought that might be it.
"America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." ΓÇô Claire Wolfe
74-AWB 98", ZF5, Atlas4, HP609s, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, 4x4x2 hyrdo assist, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
74-AWB 98", ZF5, Atlas4, HP609s, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, 4x4x2 hyrdo assist, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
- akaFrankCastle
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- Posts: 4901
- Joined: Wed Oct 27, 2010 5:25 pm
Re: 66 steering column wiring
Brake lights are indeed actuated by the master cylinder.
Stroppe'd
1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.
The Terrible One
1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.
1973 Stroppe Baja project
1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.
The Terrible One
1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.
1973 Stroppe Baja project
- Viperwolf1
- Official CCB Member

- Posts: 1485
- Joined: Tue May 07, 2013 9:37 pm
Re: 66 steering column wiring
I think the hazards were an option in '66.
As for the turn flasher, if all the bulbs are working then a new flasher should do the trick.
As for the turn flasher, if all the bulbs are working then a new flasher should do the trick.
- Gunnibronco
- Official CCB Member

- Posts: 4077
- Joined: Mon Jan 03, 2011 5:07 pm
Re: 66 steering column wiring
Thanks guys!
"America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." ΓÇô Claire Wolfe
74-AWB 98", ZF5, Atlas4, HP609s, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, 4x4x2 hyrdo assist, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
74-AWB 98", ZF5, Atlas4, HP609s, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, 4x4x2 hyrdo assist, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)