Can f350 single be changed to dually?

Yes, a Ford F-350 single rear wheel (SRW) can be converted to a dually (dual rear wheel, DRW) setup. This involves replacing the rear axle, wheels, and possibly the tires to accommodate the dual wheels. Additionally, modifications to the fenders may be necessary to fit the wider stance of the dually setup. However, it's important to consider the costs and complexity of such a conversion, as well as any potential impacts on vehicle handling and performance.