Mustang Headlight Switch (1965-1968) Installation Instructions

1. Before beginning to install your new Mustang Headlight Switch, take a look at where the wiring harness attaches to the front of the switch. The spacer to the right may be integrated, like this one is, or be a separate piece.
Mustang Headlight Switch Install Image
2. The back side of the switch has a small button, which is used to release the knob and shaft.
Mustang Headlight Switch Install Image
3. To start the installation, first remove the negative terminal from the Mustang battery. Then, turn the headlight switch all the way counterclockwise.
Mustang Headlight Switch Install Image
4. Reach up under the dash and press the small button underneath the switch, and you will be able to pull the Mustang headlight switch knob and shaft straight out.
Mustang Headlight Switch Install Image
5. Use a large, flat head screw driver to unscrew the Mustang headlight switch retainer. This will release the switch. Disconnect and remove the wires from the switch.
Mustang Headlight Switch Install Image
6. Here is an enlarged view of the knob, shaft, switch retainer, bezel and the switch itself.
Mustang Headlight Switch Install Image
7. I elected to test my Mustang headlights before putting the switch back in the dash. To do this, I reconnected the battery, checked the switch and then disconnected the battery again.
Mustang Headlight Switch Install Image
8. With the wires connected, assemble in reverse order. Install the Mustang headlight switch bezel and switch retainer, then re-tighten with the screwdriver.
Mustang Headlight Switch Install Image
9. Push the knob and shaft in until it clicks and is secure. Test it to be sure it is seated fully, then you're finished installing your new Mustang Headlight Switch.
Mustang Headlight Switch Install Image