What is the lug pattern on a 1966 Chevrolet El Camino?

The lug pattern on a 1966 Chevrolet El Camino depends on the wheel size and options chosen when the vehicle was manufactured. There wasn't a single lug pattern across all models that year. You'll need to check the vehicle itself to determine the lug pattern.

To find the lug pattern, you can:

* Inspect the wheel itself: The lug pattern (e.g., 5x4.75") is often cast into the wheel.

* Look at the owner's manual (if available): This should specify the correct lug pattern for your specific El Camino.

* Check your spare tire: The spare tire should match the lug pattern of your vehicle's other wheels.

* Measure the wheel yourself: Carefully measure the distance between the center of two adjacent lug holes and then between the centers of lug holes that are diagonally opposite each other. This will allow you to determine the bolt pattern.

Without knowing the specific El Camino's options, it's impossible to definitively answer the question.