‘68 ignition switch Q. - Chevelle Tech
Electrical & Wiring Troubleshooting electrical problems.

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post #1 of 10 (permalink) Old Apr 23rd, 19, 11:06 AM Thread Starter
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Tom
 
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‘68 ignition switch Q.

My wiring harness has been hacked up by a previous owner. It’s currently working with individual spade terminals going to each of the seven blades on the switch. Lots of calling around and asking questions has helped me determine that the ‘68 switch is a one-year-only piece. The 7-terminal plug for it is not reproduced.

I do have another member here willing to cut a ‘68 harness up once he does a swap, but that will be a few months down the road. In the interim, can someone help me out with some answers?

1) if I were to buy a earlier/later switch with six terminals, what would I be losing? If only the key-in buzzer, I’m good with that.

2) is there something special about the shoulder/thread/depth of the ‘68 switch because of the way it mounts in the dash? Would a later/earlier six-terminal switch not mount properly in my ‘68 dash?

I can find wiring diagrams for the various switches, but not internal routing diagrams. I can’t really find out the difference between the six terminal and seven terminal switches.

Thanks for any help,
Tom.
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post #2 of 10 (permalink) Old Apr 23rd, 19, 1:50 PM
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Re: ‘68 ignition switch Q.

Without going into a whole new discussion, it appears there were two different ignition switches used in 68. Apparently the electrical part is the same, but the mounting and threaded portion on the neck of the switch are different. Switch numbers are (first production) D1426A/1116694 and (second production) D1400A/1116703. I don't own a 68 so I have nothing to compare. All I am is a knowledgeable parts guy trying to answer your question.
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The only reason someone would want insurance is if they want to pay someone elses bills or want someone else to pay their bills.

BIGOT is a word used by people that can't use logical reasoning to prove that you are wrong when you don't agree with them.
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post #3 of 10 (permalink) Old Apr 23rd, 19, 2:01 PM
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Re: ‘68 ignition switch Q.

Here are pictures of both switches from an earlier thread. The 1116703/D1400A is the darker one in the picture.

Quote:
Originally Posted by frank1911 View Post
Here they are.

Jon N.

The only reason someone would want insurance is if they want to pay someone elses bills or want someone else to pay their bills.

BIGOT is a word used by people that can't use logical reasoning to prove that you are wrong when you don't agree with them.
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post #4 of 10 (permalink) Old Apr 23rd, 19, 2:11 PM Thread Starter
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Re: ‘68 ignition switch Q.

Wow. Looks like different terminal alignment for each switch as well as mounting depth. Bottom line is that no one is making seven-terminal plugs for either of them.

The search continues....
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post #5 of 10 (permalink) Old Apr 23rd, 19, 2:18 PM Thread Starter
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Re: ‘68 ignition switch Q.

And oddly, I have second-production even though my car is an October ‘67 build. But the way this car has been, I’d be surprised if this is even the original dash that came with it.
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post #6 of 10 (permalink) Old Apr 23rd, 19, 10:16 PM
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Re: ‘68 ignition switch Q.

Quote:
Originally Posted by dyno jonn View Post
Here are pictures of both switches from an earlier thread. The 1116703/D1400A is the darker one in the picture.
Jonn,
Yes indeed the darker one is exactly what came in my '68 from the factory. I found one but paid a pretty price. I just saw another on Ebay for $99.00. Ouch!

Sent from my SM-G930V using Tapatalk
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post #7 of 10 (permalink) Old Apr 26th, 19, 7:25 PM Thread Starter
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Re: ‘68 ignition switch Q.

Quote:
Originally Posted by dyno jonn View Post
Here are pictures of both switches from an earlier thread. The 1116703/D1400A is the darker one in the picture.
And the irony continues:

Apparently I do need the earlier type switch like the darker one. I FINALLY got my dash all reassembled and installed today. And my ignition switch sits about 1/4” too deep into the bezel. So now off to source a new switch. That will make the wiper switch the only thing I haven’t had to replace on this entire dashboard project.
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post #8 of 10 (permalink) Old Apr 26th, 19, 8:49 PM
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Re: ‘68 ignition switch Q.

Nice guages. I like the looks of those.
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post #9 of 10 (permalink) Old Apr 26th, 19, 8:59 PM Thread Starter
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Re: ‘68 ignition switch Q.

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Originally Posted by 68SuperSport* View Post
Nice guages. I like the looks of those.
It’s the Dakota Digital HDX series. Works great. I was pretty surprised to find that you can change literally everything with a Bluetooth app on your phone. I even set the speedometer while driving and synch’ed it to my phone GPS. We are truly in the good old days.
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post #10 of 10 (permalink) Old Apr 26th, 19, 9:21 PM
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Re: ‘68 ignition switch Q.

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Originally Posted by any4xx View Post
It’s the Dakota Digital HDX series. Works great. I was pretty surprised to find that you can change literally everything with a Bluetooth app on your phone. I even set the speedometer while driving and synch’ed it to my phone GPS. We are truly in the good old days.
Oh man that is cool. It is some amazing stuff going on in the car world these days.!
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