Heavy-duty trucks are built to work. They are designed to tow, haul, and carry serious weight. But when a factory dual rear wheel truck leaves the pavement, its biggest strength can quickly become one of its biggest limitations. That is where a single wheel conversion changes everything. A single wheel conversion replaces the factory dual rear wheel setup with one large, heavy-duty wheel and tire at each rear corner. Instead of running two rear tires per side, the truck runs