Headlight wiring upgrade
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Senior User
Joined: Jun 2007
Posts: 218
Likes: 0
From: Colorado
Headlight wiring upgrade
I want to upgrade my headlights .I bought a "Heavy-Duty Headlight Harness " (no splicing -no cutting ) from LMC. Not so! I am going to have to wire it myself to get the results that I want .My 75 has seperate power to each headlight . I would like to put this together with two relays so I am thinking about starting on the passenger side and going with power from the positive on the passenger side.Both right and left lights would switch from the passenger side.I can go to both sides ,but then I have to route power and two more relays to the driver side. Anyone been here before ?
Elder User
Joined: Oct 2005
Posts: 595
Likes: 0
From: Chico, CA
Here's the link to the article on FTE. This shows the proper wiring diagram with the relays. I did my lights this way, not with the harness from LMC. Power for both lights comes from one side, not each side individually.
https://www.ford-trucks.com/article/...r_Brights.html
https://www.ford-trucks.com/article/...r_Brights.html
