Installation Instructions For 80800/80888 Plow Lights

The following instructions are for the majority of full size Chevrolet, Ford and Dodge Pick-Up trucks.
1. Mount the lights (1 & 2) to the light brackets using supplied hardware. NOTE: After installation is complete, they must be aimed so as to comply with Federal Motor Vehicle Safety Standard 108.
2. Route the wire harness (3) from the switch bracket on the dashboard to the front of the truck, ending in a convenient location for plugging in the lights (1 & 2). This is generally behind the grille and in front of the radiator. If the vehicle has no holes in the radiator support structure, the harness legs can be routed down each side of the radiator and then brought back up behind the grille. If necessary drill a hole in the firewall for harness (3) and protect it with a grommet.
Caution: It is important that the harness, all wires from the light switch and all other electrical wires, be routed around hot or moving engine parts and any sharp sheet metal. Protection must be provided to guard against wire damage at these points. All excess or loose wires must be neatly secured using wire ties.
3. Instal light switch (4). Plug in wires from wire harnesses shown.

4. Use a test lamp to find the vehicles high beam and low beam wires in the engine compartment. A good location is usually on the driver’s side fender well. Cut these two wires and attach the proper wire from the wire harness (3) using tap connectors (5) as shown.
IMPORTANT NOTE: Some vehicles have two high beam and two low beam wires. Cut all four wires and twist the high beam wires together and low beam wires together. Treat each pair of twisted wires as though it were a single wire when making the connections as shown.
5. Attach eyelets of the two white wires to a good, clean chassis ground.
6. Locate the vehicle’s marker light wires and right & left turn signal wires. Using tap connectors, connect these wires as shown. (No special test light procedure is needed for markers and turn signals).
7. Verify that installation is correct by switching from high beam to low beam on both vehicle and snow plow lights. At any one time, only the snow plow or vehicle lights should be on, never both sets at once. Tape all connections or use dielectric compound, like Truck-Lite NYK-77 (Part #97944), to prevent corrosion.
MILL SUPPLY, INC.
19801 MILES RD.
CLEVELAND, OH 44128
800-888-5072 - FAX 888-781-2700