4 Headlight Kit where in Canada??

syringa · November 7, 2002

Does anybody know of a Canadian web site that sells a 4 headlights on all the time kit for a 2003 2500hd GMC??

thks

syringa

MountaineerTom · November 7, 2002

I don't know of any Canadian sites, but http://www.truckautoaccessories.com/ is close to Canada, in St. Joseph, MN.

I have several of their products and they have all worked fine. Here's a link to my page with some pics of their products installed, including the 4 headlight kit (Headlight Commander) My R&D products page

TxDoc · November 8, 2002

I had the R&D kit on my 1997 and now have the Kennedy kit, http://www.kennedydiesel.com, on the 2003. And, am using Syllvania Silverstars:

http://www.sylvania.com/auto/silverstar.htm

SilverStar's color temperature is a white hot 4,000 K, far higher than other halogens on the market and comparable to High Intensity Discharge headlights.

SilverStar shines with a luminance up to 20% greater than other halogens.

A sharp profile, silver tip, and amethyst blue coating create a dramatic, high-end, crisp, clean look.

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.