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.

Rear End Guide and Bolt Pattern Guide - Determining Differentials Rear-Axle Spotter's Guide With Lug Patterns To Boot! Christian Lee Photographer Sport Truck Staff Writer Apr 01, 2008 ...

The wheel bolt pattern is the number of lug holes and the distance between them. This can be calculated easily by using simple measuring tools, but we need to understand the term PCD first.