8x180 replaced 8x165.1 on newer GM heavy-duty trucks — the two are not interchangeable. You will find it on 2011+ Chevrolet and GMC heavy-duty trucks. We stock 2,424 wheels drilled 8x180.
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.
