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05-27-2013, 03:56 PM
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#1 |
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Registered User
 Join Date: Nov 2011
Location: enfield ct
Posts: 67
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headlight grounding
hey guys im currently installing my american autowire harness in my 72 c10. my question is where should i ground my headlights to
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05-27-2013, 04:14 PM
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#2 |
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Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
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Re: headlight grounding
I don't think so since they are grounded through the three way plug.
__________________
'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
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05-27-2013, 05:21 PM
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#3 |
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Registered User
Join Date: Nov 2011
Location: enfield ct
Posts: 67
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Re: headlight grounding
My kit came with a spare wire to ground can I ground to the core support?
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05-27-2013, 05:43 PM
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#4 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: headlight grounding
that's the way the headlights were when they came from GM they were grounded to the core support on these trucks
the core support was grounded to the truck fame too
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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05-27-2013, 06:13 PM
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#5 |
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Msgt USAF Ret
 
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,723
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Re: headlight grounding
There are 5 wires in the left headlight plug, 2 tan 2 green and a black, The black connects to the grounding lug on the headlight and runs to the core support. The tans and greens are for the high and low beams and one each goes to the right headlight with another black wire in the plug which is grounded to the right side core support.
The four headlight GMCs may be slightly different. Here's a picture. The voltage regulator is grounded here as well. here's another with the voltage regulator removed. The red arrow points to the left signal light plug.
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VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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05-27-2013, 06:41 PM
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#6 |
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GM ONLY BABY!!!
Join Date: Oct 2003
Location: Fort Wayne, IN.
Posts: 1,998
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Re: headlight grounding
Yes. VetteVet has it right. I rewired mine with the AA classic update kit as well last year.
__________________
2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride   http://www.cardomain.com/ride/707879...mc-c-k-pick-up |
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05-27-2013, 08:05 PM
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#7 |
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Registered User
Join Date: Nov 2011
Location: enfield ct
Posts: 67
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Re: headlight grounding
Awesome thanks guys
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