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01-13-2014, 05:23 PM
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#1 |
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Registered User
Join Date: Jan 2009
Location: Burbank, CA
Posts: 3,584
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2 headlights to 4
I found a 4 headlight grill at the wreaking yard yesterday and was wondering how do I wire it to work with a truck that originally came with 2. Both have the original wiring harness.
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01-13-2014, 06:06 PM
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#2 |
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Registered User
Join Date: Jun 2011
Location: WNC
Posts: 226
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Re: 2 headlights to 4
If all the wiring is orig. now would be a great time to upgrade the system with new heavy gauge wire, sockets and relays.
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01-13-2014, 06:33 PM
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#3 |
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Charlie Daniels w/ a Tq Wrench
Join Date: May 2009
Location: Statesville, NC
Posts: 1,570
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Re: 2 headlights to 4
If you already have the wiring harness with the correct plugs, it is a simple splice, they will share the same ground, so just use a test light, (or a wiring diagram) and split off the hi/lo +12v. But as mentioned above, this is a great time for new wiring, new sockets (most parts stores should have the correct ones) and relays. Also make sure you have an adequate ground. You will likely see increased output from this.
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ΜΟΛΩΝ ΛΑΒΕ 67 C10 Shortbed "Great Grandpa's Truck" I6 3 on the Tree 71k original miles 5.3 swap in the works69 K5 Blazer-Family Beach Cruiser Project 78 K30 Dually Semi-Retired Fire Truck 350/SM465 35"s SOLD01 2500HD ECSB 6.0 4x4 5.13's 8" lift 38"s |
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01-13-2014, 10:42 PM
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#4 |
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Registered User
 Join Date: May 2009
Location: Rathdrum, Idaho
Posts: 1,135
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Re: 2 headlights to 4
Here is a link to a thread about quad lights...Vernski
 http://67-72chevytrucks.com/vboard/s...d.php?t=362778 |
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01-13-2014, 11:56 PM
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#5 |
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Senior Enthusiast
Join Date: Feb 2007
Location: Spokane Valley, WA
Posts: 8,356
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Re: 2 headlights to 4
I agree it's a great time to upgrade the wiring and add relays, but if your current wiring is stock and you want to go from 2 headlights to 4, simply unplug the connector just to the drivers side of the radiator and plug in the new grille harness. Everything from the radiator bulkhead back is the same. The only difference between the 2 and 4 headlight wiring is in the grille/headlight harness itself. Same thing works in reverse, going from 4 headlights to 2.
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My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=444502 |
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01-14-2014, 11:02 AM
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#6 |
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1962 C-10
Join Date: Apr 2005
Location: Las Vegas, New Mexico
Posts: 4,978
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Re: 2 headlights to 4
I went from 4 to 2 a while back and it was just plug and play...
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Joseph Chavez  "See the USA in a Chevrolet!!" ......................_____ .........________//__{\_____ ,,,,,,,/__(O)___//___/__(O)_/ 1962 C10 Shortbed Fleetside 327/th350 GV overdrive 1974 C10 Longbed Fleetside 350/th350 "The Trash Truck" 1999 Chevy 2500 OBS, Longbed 5.7/4L80E 4x4 2015 GMC Sierra SLE 1500 4x4 |
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