6x135 is a Ford-specific pattern — the lug circle is smaller than the GM and Ram half-ton standard. You will find it on Ford F-150, Expedition and Lincoln Navigator. We stock 6,237 wheels drilled 6x135.
Measuring is simple: count the studs, then measure the diameter of the circle they sit on. Five studs are measured from the far edge of one hole to the centre of the one two holes away; six or eight studs across opposite centres. Ordering the wrong pattern is the most common fitment mistake — if your measurement falls between two patterns, confirm with the vehicle's spec sheet first.