Tech Step Bumper

[TechNova]

As I work on improving the body I decided to spend some time on better lighting. My 89 has the 4 sealed beams and I have rewired for full 12V and to run all 4 on high beams. I do alot of night driving in the fall thru an area we call deer alley so I want to be able to see deer a little sooner.

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I do not have them wired and adjusted yet. I wanted a smoother looking light for in the bumper but decided to use LED's since they will put out more light. Not crazy about the way they look, I hope they perform well enough to change my mind.

 

[alpinecrick]

With four high beams what do you do about oncoming cars?

 

[Frank Enstein]

You turn them off, Silly! Let their high beams (they won't turn them off EVER!) light up Bambi for you.

 

[TechNova]

With four high beams what do you do about oncoming cars?

Dim them the same as any other car.

 

[alpinecrick]

Dim them the same as any other car.

So you have all four low beams on when you dim them?

 

[Frank Enstein]

No. On that vehicle the headlamps only have one filament each and the factory shuts off the low beams when the high beams come on. The 4HI mod keeps the low beams on when the high beams come on.

 

[PlayingWithTBI]

Yeah, the low headlights are sealed beam 55 watts and the high beams are 65 watts out of the factory. The lows are fed with a .8 Metric Ga wire (smaller than 18 AWG) and the highs are fed with 1.0 Metric Ga (under 16 AWG) so you get quite a bit of voltage drop due to resistance. The "4 high" conversion feeds battery voltage directly to both lows and highs (through larger size wires), plus when you hit the brights, all 4 come on.

 

[alpinecrick]

Yeah, the low headlights are sealed beam 55 watts and the high beams are 65 watts out of the factory. The lows are fed with a .8 Metric Ga wire (smaller than 18 AWG) and the highs are fed with 1.0 Metric Ga (under 16 AWG) so you get quite a bit of voltage drop due to resistance. The "4 high" conversion feeds battery voltage directly to both lows and highs (through larger size wires), plus when you hit the brights, all 4 come on.

So when on dim their is one pair of low beam headlights on?

 

[Donald Mitchell]

Here's a gif somebody made to help you understand, there's also a thread on this mod.

 

[PlayingWithTBI]

So when on dim their is one pair of low beam headlights on?

Yes, one low beam on each side. Here's the thread where @5vortec7 builds them

https://www.gmt400.com/threads/hd-headlight-harnesses-w-4-high-mod.45669/