1967 - 1972 GMC Heavy Duty Headlight Harness
 

Our Heavy Duty Headlight Harness specifically designed for the 67-72 GMC trucks with dual headlights. Our HD Headlight Harness's are the top of the line, and are constructed with quality materials. They are 100% "Plug n' Play" so there is no need to cut or splice any wires what so ever. They feature 4 HD Ceramic H4 Headlight plugs, to ensure a long life and can handle very high wattage bulbs. The standard high beam bulbs on the GMC's utilized a 2 prong plug from the factory, our harness utilizes a standard 3 prong H4 plug, one pin within the the plug simply doesn't get used on the high beams. The harness will work with any headlight set up that utilizes a H4 style plug (eg. Sealed beam, Halogen, HID). With this harness installed, it will draw your power for your headlights directly from the battery (taking all the load off of your OE Headlight switch) and give your headlight the full 13.8V+ they need to run at 100% and give you a very large upgrade in light output!

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Below are a few of the benefits of upgrading your headlight Harness:

• Takes all the load off of your OEM headlight Switch
• Delivers the full 13.8V+ to your headlights to allow them to run at 100%
• Increases headlight output to allow for a safer night driving experience
• Constructed of marine grade 12awg wire
• Every connection is cleanly soldered and heat shrunk to ensure a long trouble free life
• H4 Ceramic Headlight Plugs
• Made in the United States of America
• HD 30/40 Amp Relays
• Neatly loomed with heat resistant black loom for a clean pro installation
• Plugs right into your OEM headlight Harness
• Comes with complete application specific install directions

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Regular Price: $99.95

Shipping: $9.95 via USPS Prioirity Mail to the lower 48 States ONLY
Shipping to Canada: $15.99 via USPS

Payment: PayPal or a US Postal Money Order

To Order: Simply send us a PM with your PayPal address and we'll send you an invoice with a total via PayPal

Part Number: 6772GMCHD312


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Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

I have almost 3000 miles on the truck and my LMC harness is working flawless after I Color matched the wires to the stock plug. I still do not know what I did differently than everyone else?

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

I am not quite sure what your asking here? We don't sell any import harness's, all of our HD Headlight Harness's are manufactured in the USA in the heart of Minnesota and are 100% Plug n' Play. So there is no need to splice wires or anything like that. And all of our Harness's also feature 12 awg American made wire and HD Ceramic Headlight Connectors which are far superior to the Nylon/Plastic Headlight Connectors.

The difference between our harness's and the inexpensive import harness's is like the difference between apples and oranges. If there is something that we can help you with, please feel free to ask! :chevy:

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

The harnesses from LMC come wired incorrectly and does not work. Thats what he is talking about. Looks like this harness here is the one to get.

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

Thanks Square, if anyone has any questins on our harness please ask.
Thanks

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

Alright you got me. Been staring at this for over a week now. I won't need it for a couple of months and was going to wait. I would also like a set of ground straps and a power door lock kit with extra remote. Thank you.
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Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

I'm vouching for this harness- I originally bought an LMC harness and after sending the first one back- and getting a second one that also was wired incorrectly I gave up and have been MORE than satisfied with this plug and play harness-- great product!!

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

Alright, we'll send you a PM shortly with more detail on the products you've mentioned. Thanks!

Thank you very much for the kind words, we truly appreciate it. We design our products to be absoluletly as user friendly as we possibly can; and to make them with the best quality components to ensure optimal performance! If there is ever anything that you need, please don't hesitate to ask!

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

What width are those spades that plug into the factory lamp socket to activate the relays? I could never find any wider than 0.250".

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

The connectors that we utilize to connect the OEM headlight harness to our HD harness are specifically designed connectors for this purpose. The harness's do not use a standard readily available spade connector that you find at your local parts house.

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

I am giving this deep consideration ....:metal:

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

I'd like one. Pm was sent.
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Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

Sorry, I want one for Chevy, not GMC, but still, pm sent.
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Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

Thanks for the consideration! If you have any questions, please feel free to ask and we'll be more than happy to answer any and all questions you may have!

Thank you!

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

hey where in central Minnesota? I would like one of these for my GMC, I might be able to just pick it up and save the shipping.

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

Pm recieved,will make that Chevy
Thank you very much we appreciate your business.

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

I ordered one can't wait to install it.....

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

so do you have these for chevys?

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

Yes sir, we sure do! Here is the link for 67-72 Chevy's:

http://67-72chevytrucks.com/vboard/s...d.php?t=511202

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

purty colurs, I am putting these on my Christmas list. which means more than likely around Christmas I will be buying a set of these as well. keep up the great work

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

When you install it if you have any questions, please feel free to call us, we will assist you any way we can.

Thank you for your business, we appreciate it.

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

I tied to send a private message to order but says you have exceeded your available storage space. Is this still available to purchase? if so let me know how. Thank you.

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

This members last activity on this site was 4/23/2014. Doubt you will get a response.
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Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

Damn, I cant find the light harness from anyone else other than LMC and everyone says they suck lol. Thank you for letting me know.

Re: 1967 - 1972 GMC Heavy Duty Headlight Harness
 

They don't suck, they just need to have some wires switched around to make them work properly. I have the LMC harness and after I swapped the wires it works fine. I forget the exact swap, but I'll see if I can dig up the info.