The lug pattern on a vehicle refers to how far apart the bolt holes are for a particular car or truck wheel. If the pattern of bolt holes on the hub doesn't match the pattern on the wheel, the wheel will not fit. Many vehicles have similar lug patterns, but there are a variety of differences. Some vehicles have only six lugs, while others have more or less. Typically, a vehicle will have between four and eight lugs.
Count the number of bolt holes that form the bolt circle. The bolt circle is the imaginary circle formed by the center of the bolt holes around the well. If there is currently a tire attached, count the number of lug nuts holding the tire in place. If there are five nuts or holes, you will have to apply a different method of measurement and skip Step 2.
Measure the distance between two of the lug holes or nuts directly across from each other. Stretch the measuring tape from the center of the nut or hole to the center of the other nut or hole. The distance between these two holes will become the second number in the lug pattern. For instance, a four-bolt wheel that has a distance of 100 mm between two diagonal bolts or holes will have a lug pattern that reads 4x100.
Measure the distance in a five-bolt pattern. Instead of measuring diagonally, measure from the center of one hole or nut to the third hole or nut away. Counting the hole you're starting with as "1," count around the circle until you reach "3." The distance will become the second number in a five-lug pattern (e.g., 5x101.3).
