The PatternThe most common wheel patterns for 4x4 vehicles are five-, six-, and eight-lug. Traditionally domestic vehicles have simple fractional distances like 5-on-4 1/2, 5-on-5 1/2, and 8-on 6 1/2.

There are many different important parameters when it comes to car wheels, one of those being the bolt pattern. It's actually pretty straightforward to measure.