Heavy Duty Headlight Harness.
The LMC harness is typical Chinese Crap. While it worked as designed, the connectors at the headlight bulbs were so brittle that I had to replace them a couple of times. That's because the replacement connectors, being Chinese Crap, weren’t much better. Zip Ties are your friend. One issue I did have was there seemed to be hickups with the HID bulbs.
The associated Relays mounted up well enough. Wiring to the Aux B post was straight forward but the grounding was done at each headlight requiring a new tap into the core support. No big deal, just pointing it out. Given the ‘Restoration’ idea, I ordered a beefier kit from Painless. Like I said earlier, not so painless in the wallet. It’s been sitting on the windshield since November I think. The old adage of 'if you don't have time to do it right the first time, when will you find the time to do it over' certainly applies to me.
Installation was hampered only in trying to figure out how to get the two mongosso relays with their fused power leads (upgrade from the LMC marketed unit) to fit in the same area as the old ones. It was 'Pain-fully' obvious that using the old mounting locations wasn't going to play out.
Before and After shots of “Relay Central.” You can see where I moved the 4-Hi relay to make room for the new guys. The LMC harness used Yellow looming and ran over the top of the Power Brake Control bracket where the Painless unit was run underneath it.
Old mess of wires at the core support. Example of one of the many repairs where I had to splice in new headlight bulb connectors.
Wires from the harness to/from the headlights passes through the headlight portal in the core support. To prevent chaffing, I will often use a split piece of fuel line along sharp edges where contact is anticipated. I’d done this originally with the old harness.
The driver’s side OEM connectors. Power from the light switch passes to the factory Headlight Harness and, at the driver’s side, it feeds power back to the Heavy Duty Harness and feeds the relays, causing them to activate and “relay” the power to the HD Harness. Power is then pulled from the battery via the Aux B post at the Underhood fuse box to the lights via the new harness that connects to both headlights. High and Low Beam. Another good reason to upgrade to RaceDay’s battery wiring kit.
Anyway, I cleaned these up by removing the factory electrical tape in favor of aftermarket wire loom. I chose red to help me remember the power routing when I go back in there later to replace something or another (it never ends)
Finished, the wiring and routing is much cleaner than before but then, I didn’t have the front end apart when I did it the first time.
Yes, I know that I need to clean off the old silicon and mounting tape from the old HID ballasts removed from the core support.
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