1. Preparation:
* Disconnect the battery: This is crucial to prevent electrical shocks and short circuits. Disconnect the negative (-) terminal first.
* Gather tools: You'll likely need a small flat-head screwdriver, possibly a Phillips head screwdriver, and possibly a small panel removal tool to avoid scratching the dash. A flashlight will also be helpful.
2. Accessing the Switch:
* Steering Column Cover: You'll need to remove the steering column bezel or shroud (the plastic or metal piece surrounding the steering column). This usually involves removing screws, often hidden under small trim pieces. These screws are often small and easily lost, so keep track of them and their locations.
* Switch Location: The headlight switch is usually mounted on the steering column itself, either directly on the column or on a bracket attached to it.
3. Removing the Switch:
* Wiring Harness: Carefully inspect the area around the switch. You'll see a wiring harness connected to it. Take photos or make a detailed sketch of how the wires are connected before disconnecting anything. This is *extremely* important to avoid reassembly problems.
* Connector(s): Most likely, the wiring harness uses a connector(s) that can be unplugged. Gently disconnect them. If they are difficult to remove, try gently wiggling them while pulling. Avoid excessive force. If you encounter a wire directly soldered, this is a more difficult situation that may require professional assistance.
* Switch Retention: The switch itself is likely held in place by either:
* Screws: Look for small screws securing the switch to the steering column.
* A retaining clip or ring: Some switches are held by a clip or ring that might need to be compressed or carefully pried to release the switch.
* Removal: Once the wiring harness is disconnected and the retaining mechanism is released, the switch should come out.
4. Reassembly (in reverse order):
* Connect the wiring harness, ensuring each wire is in the correct location (refer to your photos or sketch).
* Secure the switch.
* Reinstall the steering column cover.
* Reconnect the battery.
Important Considerations:
* Year-Specific Differences: There were minor variations in the dash and steering column designs across the 1967-72 model years. Consult a repair manual specific to your truck's year and model. A Chilton's or Haynes repair manual is highly recommended.
* Fragile Parts: Be very gentle to avoid breaking any plastic clips or damaging the wiring.
* Professional Help: If you're uncomfortable working on your vehicle's electrical system, it's best to seek professional help from a qualified mechanic. Improperly reconnecting the wiring can damage your vehicle's electrical system.
This is a general guide. Always consult a repair manual for your specific truck model year to ensure you have the most accurate and safe instructions. Take your time, be patient, and prioritize safety.
