MN Pre-Order Sale: 1973-1987 Chevy & GMC Heavy Duty Headlight Relay Harness

[VH Coachworks]

Originally Posted by 54Caddy

wouldn't this put more load on the battery. Or would it help charging system out? Would it helping with dimming headlights from audio in my truck?

The harness is built to take the load off of your OEM headlight wiring and switch, and allow your headlights to recieve the full 13.8V+ the need to run at 100% by having as little resistance in the HD harness as possible by drawing power directly from the battery.

With that being said, if your having issues with dimming headlights. I would guess that you have a pretty good sized amplifier and sub woofer installed in your truck. The lights are most likely dimming when the Bass "hits", you see when the bass hits the amp draws more power (For example; at a normal point in the song, the amp may be running at 150 amps, but when a bass heavy portion of the song comes up (when the bass hits hard) the amp may be running at 300 amps) that example is just an example as I don't know your systems specs. And in result can starve other accessories on the truck for power such as lights. If this is the situation for you, I would recommend upgrading your alternator and battery (Or running a dual battery set up) as well as performing the "Big 3" upgrade as well as upgrading all of your grounds. Also if you don't have sufficient grounding for your amp, that can also play a factor in issues like this. Generally you want your amp ground to be 18" or less, shorter the better. And you also want to make sure that you have the same gauge ground cable going from your negative battery terminal to the body (If amp is grounded to the body also)

Those 3 things will help with the dimming lights, and then if you where to install one of our HD headlight harness's, you would most likely eliminate the dimming lights problem all together! With a HD Headlight Harness installed, you will also notice that your dash lights will be brighter and your blower motor will also most likely run faster! If you would like further info on the topic I'll be more then happy to help!

-Baron

[88Jimmy4x4]

Originally Posted by VH Coachworks

No, The harness plugs into your OEM Passenger side headlamp connector! Allowing for an easy installation without the need to remove your OEM headlight harness!

Oh okay, so the stock switch just activates the relay which in turn sends the full voltagerom batt to the headlights....nice

[VH Coachworks]

Originally Posted by 88Jimmy4x4

Oh okay, so the stock switch just activates the relay which in turn sends the full voltagerom batt to the headlights....nice

Yes sir, the switch just sends signal to the relays, which draws the full power for the headlights directly from the battery to the headlights!

[JNJchev77]

Was wondering if your harness for the single headlight trucks will work without the original/replacement headlight harness?

Rewiring the whole truck and wondering if I can just use this harness for my headlights...

[VH Coachworks]

Originally Posted by JNJchev77

Was wondering if your harness for the single headlight trucks will work without the original/replacement headlight harness?

Rewiring the whole truck and wondering if I can just use this harness for my headlights...

This harness is designed to be a plug n' play install for trucks equiped with the OE harness. However, if you'd like to run our harness to power your headlights without the OE harness. You'd simply have to run 2 wires to your dimmer switch from the new HD Harness. It's a very simple thing to do if that is what your looking to do! If you have any other questions, please feel free to ask!

Thanks,
Baron

[JNJchev77]

Thanks VH, I'll let you know if I decide to go that route!

[VH Coachworks]

Originally Posted by JNJchev77

Thanks VH, I'll let you know if I decide to go that route!

That sounds good! If there is anything that we can do for you, don't hesitate to ask!