Restore original function and appearance to your truck’s lighting controls with this 1975-87 Square Body Chevy & GMC Truck Headlight Knob. This factory style replacement features a chrome knob with the correct “light logo” in the center, matching the original GM design for an authentic look and feel.
The knob pulls out once for parking lights, a second time for headlights, and rotates smoothly to dim or brighten your dash lights. When turned fully, it activates the dome light just like the factory setup. Compatible with both floor and column mounted high beam controls, this knob and shaft assembly installs directly to your existing headlight switch.
Constructed for a precise fit and smooth operation, it’s the perfect finishing touch for your interior restoration or electrical repair.
Installation Tips
- Reach under the dash to locate the headlight switch body.
- Find the small spring button on the switch (typically on the top or side).
- Press the button while pulling the knob and shaft straight out from the front of the dash and they’ll slide out together.
- To reinstall, align the new shaft with the switch and push it in until it clicks.
- Test pull, rotation, and dome light activation to ensure proper function.
Key Features
- Fits 1973–1987 Chevy and GMC Square Body Trucks, Blazers, Jimmys, and Suburbans
- Chrome knob with correct GM “light logo” for a factory appearance
- Includes shaft and knob assembly
- Pull once for parking lights, twice for headlights
- Rotate to adjust dash light brightness or turn on dome light
- Works with floor or column high beam controls
- Direct replacement for factory knob and shaft
- Simple, tool free installation
Bring your Square Body interior back to life with this OEM style headlight knob and shaft, built for reliability, smooth operation, and an authentic factory look. We would recommend replacing the 1973-87 Square Body Chevy & GMC Truck Headlight Switch at this time. Also, we are having more and more people purchase our 1977-87 Square Body Chevy & GMC Truck Heavy Duty Power Window Harness for a brighter night.
