Quad headlight kit?

Worktruck · October 7, 2002

Does anyone know if there is a kit to join the high and low beams on a 2002 Sierra? Drive alot of back roads and the stock lights stink. Really can't afford HID. Thanks in advance.

MountaineerTom · October 8, 2002

Welcome to the site Worktruck. hope you like it.

I have the R&D Headlight Controller kit on mine, and have been very pleased with it. There are some other kits available out there also, but a couple I've tried caused teh lows to dim slightly when the highs came on. The R&D kit doesn't do that on my truck. There is also a "free" (or nearly free) way to do it by cutting/splicing wires somehow and adding a relay, but I'm not sure how you do it. I prefered to get the kit already made.

Worktruck · October 8, 2002

Thanks for the welcome Tom. And thanks for the info. I have ordered the kit, can't wait to see the results.

99silveradoz71 · October 9, 2002

R&D here as well. No problems.

Kania2k1 · October 11, 2002

Got the same, now if I can only get my fogs to stay on too!

z71ff · October 21, 2002

After reading this thread I got the kit too. I got the kit in the mail on Saturday and it went in with no problems at all. I don't know how long it took, since I started re-routing some accessory wires, etc....

MarkD · October 21, 2002

I am selling my T&D kits if anyone is interested...

Items for Sale

Worktruck · October 21, 2002

Just thought I'd follow up, got the kit about a week ago and it installed in a snap (in the dark to boot). What an improvement, too bad that they don't make that an OEM option. Next is the Ford keys on the torsion bars since I will be plowing with my 1/2 ton and the front drops like a rock with the 7 1/2 ft minute mount on. Great forum.

silverado man · October 21, 2002

Got the same, now if I can only get my fogs to stay on too!

You can with the R&D fog light kit. But the only thing is that they go off with the hi's on.

saucemann · November 27, 2002

Does anyone have the wiring diagram for the painlesswiring headlight kit?

I saw pictures of it and it looks like a regular relay.

RKB'S HD · January 8, 2003

HAD THE PAINLESS KIT IT WORKED WELL. IF YOU REALLY WANT TO SEE AT NITE, GO WITH THE KENNEDY DIESEL

HEADLIGHT BOOSTER WIRING HARNESS. ITS A LITTLE PRICEY

BUT YOU WONT BELIEVE THEY ARE THE SAME HEADLIGHTS THAT YOU HAVE ALWAYS HAD.THERE ARE TWO VERSIONS, ONE WITH HIGH PERFORMANCE BULBS, ONE WITH OUT.

GO WITH OUT THE HYPER BULBS. IF YOU NEED MORE LIGHT THAN THAT YOU NEED TO INVEST IN A SET OF HELLA 4000 EUROBEAMS. AND JUST TIE THEM INTO YOU HIGHBEAM CICUIT.

mcali17 · January 9, 2003

Does anyone make a Quad Headlight Kit for the 2002 GMC Envoy?

I have HID low beams, and when I put my highbeams on, it is like the lights are off because of the difference in intensity. But, when all four are lit (by using the flash to pass option) it is perfect. HID low beams illimunate short and the High Beams go long. Any help would be appreciated.

TxDoc · January 9, 2003

I had an R&D on my 1997 and it was fine. I now have a Kennedy Harness and like it, too. It is higher priced, but comes with a whole new harness and two relays and a diode that can be removed to easily reverse the function.

More info:

Kennedy info:

The HB kit is designed to get the maximum voltage possible to the headlamps while relieving the strain on the headlight switch, and undersized factory wiring. The result is much whiter brighter lights increasing visibility by putting more light on the road in front of you. There are currently two kits available. The first fits most any vehicle using 9005 and 9006 lamps. This includes most GM 4 lamp composites from 1990 on. There are also kits for older vehicles with H4 (2 and 3 pin push on spade connector) lamps. This covers vehicles with the old sealed beam glass lamps all the way back.

MDrag's test info:

I measured the voltage at the headlight connectors with the lights on by piercing the insulation close to the connector. The OEM and KD harness were tested with the stock bulbs and 70W LB/100W HB Phillips Halogen bulbs provide by Kennedy.

Voltage readings were obtained using a Fluke model 77 digital multimeter and compared to battery/alternator voltage after the system voltage stabilized. I also made measurements at factory idle speed and using the high idle mod speed of ~850 RPM (no difference).

The results were similar for the OEM bulbs or the 70W/100W bulbs. The OEM 4 lamp voltages were obtained using the modification posted on previous threads - that link for the 4 lamp mod no longer works. I removed that 4 lamp mod for testing of the KD harness and used the diode provided with Kennedy's kit for 4 lamp measurements.

Battery voltage measured approx 14.5V during the readings, but would fluctuate slightly and the actual voltage was recorded and used. Here are the numbers for the 70W/100W Phillips Halogen bulbs:

OEM Harness LB 0.6V drop max

KD Harness LB 0.3V drop max

OEM Harness 4 lamp 0.6V max drop LB bulb

1.2V max drop HB bulb

KD Harness 4 lamp 0.3V max drop LB bulb

0.3V max drop HB bulb

The Kennedy harness cut the LB voltage drop in half. The improvement was more dramatic in the HB 4 lamp mode with the LB bulb voltage loss decreased by 50% and the HB bulb voltage loss diminished by a factor of FOUR (400%) using the KD harness.

These numbers confirm what I see when using the headlights. There is NO dimming of the LB bulb(s) with 4 lamp operation. Whether you opt to use the higher wattage bulbs or the OEM bulbs - YOU WILL SEE AN IMPROVEMENT in your headlight illumination.

The harness has individual 12V power and ground leads for the DS and PS, along with heavy duty weather-proof relays (2). Heavy gauge wire is used throughout with first rate weather pak connectors. A removable diode converts the harness from 2 lamp HB to 4 lamp HB use. The harness is covered with split loom.

JK told me the harness kit fits 1990 to present with composite lamps. Kits available for most other models as well.

Hope that helps.

nonstop · January 9, 2003

I followed the directions from Chane's site, http://www.anythingcars.com/members/chane/4lamp.htm

Wasn't all that bad, Used an old relay that I had laying around.

Cost was a couple of bucks for some connectors.

Installed in about an hour, major improvment when the hi's and lo's are on.

I pity the fool, who flashes me when my lo's are on, cause they're goning to get to see just how bright 4 lights are compared to two.

dukbludvl · February 24, 2003

installed both the R&D headlight and foglight controllers on my 00 yukon today -- went very easy and took about an hour. haven't run them at night yet, but expect the hi/lo combo to be much better. now for some superwhite bulbs. i'm thinking of geting the sylvania silverstars -- does anyone know the part number for hi and lo beams on these? also, what about fog lights?