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1968 Changing Headlight switch, PROBLEM

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Old Nov 9, 2015 | 10:37 AM
  #21  
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I ordered a new switch and just opened it. Damn it , it only has 7. I hate returning stuff. Where can I get the correct 8 pin?

Just checked keene parts, no 68 switches

Last edited by Rescue Rogers; Nov 9, 2015 at 12:07 PM.
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Old Nov 9, 2015 | 06:02 PM
  #22  
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Originally Posted by Cralmic
Am also working on identifying 2 loose connectors (plugs). Would appreciate any aha, that's blah blah blah.
Would also appreciate which 1968 Corvette manuals are best for wiring, suspension etc.

My project is of a '68 Convertible. Originally had a 427, now 454. As with every Vette, there is a story.... One previous owner had cancer, was probably great guy, just maybe not the most mechanically inclined.... Hope the car served as an outlet for him!

Appreciate any insight.





Pink and green is the backup switch
The brown and black is the wiper door solenoid
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Old Nov 9, 2015 | 07:29 PM
  #23  
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Edited to corect numbers: Good news is the wiring harness diagram only shows 7 wires, 2 of which use the same pin. Thanks cdl49. Aaaaand the wiring harness replacement plug has only 6. Photoshop pic has 6 wires at plug but photoshoped down to 5 at tail end. Don't panic. By my wiring diagrams I thnk I have the wiring at the switch decoded.
http://keenparts.com/pages/detail.ph...partnum=370101

The switch that had the low.beams only on at half pull must be a day time running lights model switch

Last edited by Rescue Rogers; Nov 11, 2015 at 08:58 AM.
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Old Nov 9, 2015 | 08:47 PM
  #24  
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Originally Posted by Willcox Corvette
The original part and production number for the headlamp switch for 1968-1974 was 1995166. You can id an original headlamp switch by the presence of the part number 166 stamped in the back side of the metal bracket opposite the vacuum tubes.

This part was replaced in July 1974 by part number 1995191. 1995191 was the last production part number for the switch from July 1974 until the switch discontinued around 1996.

Both original 1995166 and 1995191 had 7 terminals (I have both in my hand right now) and will post pictures later today.

The GM application for this switch was 1968-1977 as shown in the 1953-1977 GM parts book Rev. 09-1977.

68·77· Y • 1995191 1 N.L SWITCH

and from the 1971 parts book rev. Dec 1971 you'll find this.
68-72 Corvette.. . . . . . . . . . . . . . . . 1995166

Now there is a difference between the original 1995166 and the 1995191. There was a grounding tab added to the metal bracket on the bottom for 1995191 and the rheostat was slightly different.

Again.. you can ID an original 1968-1974 switch by the presence of 166 stamped on the back.. and both switches have 7 electrical terminals in the black portion of the switch.

Avner.. what part number is stamped on the back of the switch you removed from the car... I know of no other switch from 1968-1977.



Willcox
By the diagram using the red numbers
1 white.......... courtesy lights return wire no power
2 red............. main power into switch for all lights except for tail lights
3 not used......
4 brown......... marker lights/ tail lights power lead out (one wire front,other rear)
5 dk green..... dash lights, acc lights power lead back out to fuse
6 blue........... dimmer switch headlight powerlead out
7 orange........ fused main power in for tail lights
8 not used......

Last edited by Rescue Rogers; Nov 11, 2015 at 09:01 AM.
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Old Nov 9, 2015 | 10:42 PM
  #25  
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The pink and green connector is the back up lamp switch. It runs from the transmission up to a connection that runs through the firewall and is connected to the dash harness.

Originally Posted by Cralmic
Am also working on identifying 2 loose connectors (plugs). Would appreciate any aha, that's blah blah blah.
Would also appreciate which 1968 Corvette manuals are best for wiring, suspension etc.

My project is of a '68 Convertible. Originally had a 427, now 454. As with every Vette, there is a story.... One previous owner had cancer, was probably great guy, just maybe not the most mechanically inclined.... Hope the car served as an outlet for him!

Appreciate any insight.





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Old Nov 10, 2015 | 12:20 PM
  #26  
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our old switch had 8 terminals but only 6 were used as the 2 brown wires of the seven total were using the same terminal seen in the pic. the car is early 68. Dean


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