1. Park your truck in a level spot and turn off the engine.
2. Open the hood of your truck.
3. Locate the headlight assembly that needs the bulb replaced.
4. Remove the rubber cover from the back of the headlight assembly.
5. Locate the metal clip that holds the bulb in place.
6. Use a flat-head screwdriver to pry the metal clip up and out of the way.
7. Remove the old light bulb from the headlight assembly.
8. Insert the new light bulb into the headlight assembly.
9. Make sure that the new light bulb is seated properly in the socket.
10. Replace the metal clip that holds the bulb in place.
11. Replace the rubber cover on the back of the headlight assembly.
12. Close the hood of your truck.
13. Turn on your headlights to make sure that the new bulb is working properly.
