Dually Wheels

Dually wheels come as a six-wheel system, not as four identical wheels. The rear wheels are paired back to back and the rear pair uses a different offset than the fronts so that the two rear tires sit at the correct spacing with enough gap between them for airflow and for debris to clear. Buying four of the wrong wheels for a dually is the most common and most expensive mistake in this category.Modern one-ton duallys run large 8-lug patterns. Ford F-350 and F-450 use 8x200. RAM 3500 uses 8x200 on newer trucks and 8x165.1 on older ones. Chevrolet Silverado 3500 and GMC Sierra 3500 use 8x180 or 8x210 depending on year. These are large-diameter patterns and are not cross-compatible, so year and model verification matters more here than anywhere else on the site.You also need to think about valve stem access. On a dually the inner rear wheel valve stem has to be reachable through the outer wheel, which is why dually-specific wheels have valve access holes and why standard truck wheels cannot simply be doubled up.