Normal routing of headlight wires - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**dmjlambert** · 08-18-2024, 09:57 PM

Hi folks, what is the normal way the headlight wiring would have been routed for a 1963 C10? As you see right now it's probably just table lamp wire draped across the bumper brackets. And there is a ground wire coming out of a gap near the radiator and wrapping around the main negative battery cable and attached to engine. Looks funky to me and I'd like to straighten it out. The main charging cable between the horn relay and battery look pretty good, it's going through holes on both sides of the radiator support and going through clips under the top of the radiator support. I wonder if the headlight wires used to go along that path. What's the most proper way?

Braunschweiger · 08-19-2024, 01:57 AM

There should be plastic brackets in the grille to which the cable is attached, but they may be broken.

**bhap** · 08-19-2024, 07:27 AM

On my 62 the headlight wires ran from a plug in the driver side firewall along the inner fender to a grommet/plug in the driver side radiator support. It fed the left headlight and then the right. There were white plastic clips with small plugs that held the harness in place behind the grill. If you are cleaning up wiring, this would be a good opportunity to put in a couple of relays for your headlights.

ACK · 08-19-2024, 05:29 PM

Quote:

Originally Posted by bhap

On my 62 the headlight wires ran from a plug in the driver side firewall along the inner fender to a grommet/plug in the driver side radiator support. It fed the left headlight and then the right. There were white plastic clips with small plugs that held the harness in place behind the grill. If you are cleaning up wiring, this would be a good opportunity to put in a couple of relays for your headlights.

One of the best upgrades to my C10. Got a bunch of nice relays from the local pick'n'pull for next to nothing.

**dmjlambert** · 08-19-2024, 08:04 PM

Great info here, thanks!

**cwcarpenter98** · 08-19-2024, 09:59 PM

The headlight relays are definitely the way to go. Made my T3 bulbs brighter and work really well with the Halogen sealed beams that I replaced the T3s with once one burned out

**dmb** · 08-20-2024, 11:17 AM

This is what I used, plug and play
https://www.ebay.com/itm/124148130601

**dmb** · 08-20-2024, 01:45 PM

https://www.ebay.com/itm/124148130601
I used this kit was very pleased

08-18-2024, 09:57 PM	#1
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 3,859	Normal routing of headlight wires Hi folks, what is the normal way the headlight wiring would have been routed for a 1963 C10? As you see right now it's probably just table lamp wire draped across the bumper brackets. And there is a ground wire coming out of a gap near the radiator and wrapping around the main negative battery cable and attached to engine. Looks funky to me and I'd like to straighten it out. The main charging cable between the horn relay and battery look pretty good, it's going through holes on both sides of the radiator support and going through clips under the top of the radiator support. I wonder if the headlight wires used to go along that path. What's the most proper way? Attached Images

08-19-2024, 01:57 AM	#2
Braunschweiger Registered User Join Date: Aug 2020 Location: Braunschweig, Lower Saxony, Germany Posts: 809	Re: Normal routing of headlight wires There should be plastic brackets in the grille to which the cable is attached, but they may be broken. Attached Images __________________ ------------------------------------------- Greetings Harald My 62 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=829782

08-19-2024, 07:27 AM	#3
bhap Senior Member Join Date: Mar 2006 Location: Pittsburgh, PA Posts: 264	Re: Normal routing of headlight wires On my 62 the headlight wires ran from a plug in the driver side firewall along the inner fender to a grommet/plug in the driver side radiator support. It fed the left headlight and then the right. There were white plastic clips with small plugs that held the harness in place behind the grill. If you are cleaning up wiring, this would be a good opportunity to put in a couple of relays for your headlights.

08-19-2024, 08:04 PM	#5
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 3,859	Re: Normal routing of headlight wires Great info here, thanks!

08-19-2024, 09:59 PM	#6
cwcarpenter98 Senior Member Join Date: Jan 2018 Location: Hickory Flat, GA Posts: 4,488	Re: Normal routing of headlight wires The headlight relays are definitely the way to go. Made my T3 bulbs brighter and work really well with the Halogen sealed beams that I replaced the T3s with once one burned out __________________ Christian Carpenter 1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive Overdrive wiring here 1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson

08-20-2024, 11:17 AM	#7
dmb Active Member Join Date: Sep 2023 Location: randolph va Posts: 158	Re: Normal routing of headlight wires This is what I used, plug and play https://www.ebay.com/itm/124148130601 __________________ Old dogs and children and watermelon wine

08-20-2024, 01:45 PM	#8
dmb Active Member Join Date: Sep 2023 Location: randolph va Posts: 158	Re: Normal routing of headlight wires https://www.ebay.com/itm/124148130601 I used this kit was very pleased __________________ Old dogs and children and watermelon wine



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