A proper projector retrofit involves opening your factory 1999 GMC Sierra 1500 headlight housings, removing the original reflector bowls, and installing mini projector lenses in their place. Several companies offer complete retrofit kits specifically for the 1999-2006 GMC Sierra, including brands like Morimoto, The Retrofit Source (TRS), and Spec-D. A typical kit includes a pair of miniature projectors (2.5 or 3.0 inches in diameter), HID…
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Based in Guangzhou, China, Guangzhou Morun Technology Co.,Ltd is one of the leading led headlights manufacturers and suppliers for Jeep, motorcycles and trucks etc. Jane Jiang is the ceo of Guangzhou Morsun Technology Co., Ltd
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Adding Rock Lights for 1999 GMC Sierra 1500 Off-Road Illumination apsense.com bookmark
Run the main harness along the frame rail, following existing factory lines and securing with zip ties every 12 inches. Route the switch wire through a firewall grommet—typically located near the steering column—into the cabin. Mount your rock light switch in an unused dash blank or in a discreet location below the dashboard. Connect the harness power leads to the battery (positive to positive, negative…
Installing Sequential Turn Signals in the 1999 GMC Sierra 1500 Taillights morsunled.wordpress.com bookmark
Installation requires only basic hand tools and about 30 to 45 minutes. Begin by lowering the tailgate to access the two retaining screws securing each taillight housing—one upper and one lower . Use a Phillips screwdriver to remove these screws, then gently pull the taillight assembly straight out from the truck body. Be careful not to force it, as the factory harness is still connected….
DOT Approved 1999 GMC Sierra LED Headlights Upgrade luxevolume.com bookmark
Alternatively, LED replacement bulbs designed to fit the factory 9005 (high beam) and 9006 (low beam) sockets are available. However, a significant legal caveat applies: LED conversion bulbs installed in original reflector housings are not DOT-legal for on-road use in many jurisdictions . The reflector housing is optically engineered for halogen filaments, which emit light 360 degrees, while LED chips produce directional light. Even with…
Upgrading the 1999 GMC Sierra 1500 Cargo Light to LED atoallinks.com bookmark
Insert the new LED bulb. Note that LEDs are polarity-sensitive; if the light does not illuminate when you test it, simply remove the bulb, rotate it 180 degrees, and reinsert. Reattach the lens cover, ensuring all clips snap securely into place. Test the cargo light using the dash-mounted switch or by opening a door (the cargo light often activates with the dome light circuit). The…
Installing Fog Lights on a Base Model 1999 GMC Sierra 1500 storeboard.com bookmark
Before installing any auxiliary lighting, however, you must address the condition of your truck’s factory headlights. On a 1999 GMC Sierra 1500, the original composite headlight lenses are now over 25 years old. Prolonged exposure to UV radiation, road salts, and temperature extremes causes the polycarbonate plastic to oxidize, turning from clear to a hazy, yellowed, and scratched surface. Driving a base model Sierra with…
Installing Fog Lights on a Base Model 1999 GMC Sierra 1500 graph.org bookmark
To begin the fog light installation, choose a kit designed for GMT400-platform trucks (1999 was a transition year, but the Sierra classic body style shares components with late 1990s models). Universal LED fog light kits with a 3- to 4-inch round or rectangular housing work well. You will also need a wiring harness with a relay, fuse, switch, and sufficient 14-gauge wire. Start by removing…
Restoring Faded Factory Headlight Lenses of 1999 GMC Sierra 1500 telegra.ph bookmark
After restoration, take preventive measures: park in shade or use a car cover, apply a spray wax with UV inhibitors monthly, and avoid automatic car washes with stiff brushes. For badly yellowed lenses where the oxidation penetrates deeply, replacement may be the only option—but in most cases, a careful restoration yields 90–95% of original clarity. Your restored 1999 GMC Sierra 1500 will not only look…
Upgrading to LED Headlights on a 1999 GMC Sierra 1500 morsunled.stck.me bookmark
Beyond visibility, LED headlights offer other compelling benefits. They consume approximately 80 percent less power than halogens, reducing electrical system load—particularly valuable on older trucks with aging alternators or multiple accessory circuits. LEDs also last up to 30,000 hours or more, meaning you will likely never replace them again. Finally, the modern white light simply looks better, giving your 1999 Sierra a cleaner, more contemporary…
Adding a Throttle Response Controller to Your Dodge Ram 1500 – Industry Mag industrymag.org bookmark
For these reasons, installing a throttle response controller is the perfect time to perform a headlight re-aiming check. Park your 2018 Ram on level ground exactly 25 feet from a flat wall with a full tank of gas and any typical cargo in the bed. Measure from the ground to the center of each 2018 Dodge Ram 1500 headlights bulb and mark that height on…