Ford has patented a new and ingenious bolt-on third axle for boosting vehicle ... A second set of rear wheels could also hold electric motors that add a bit of fuel economy to a larger truck.

The Ford patent shows a bolt-on kit ... kit to add a second rear axle for the F-Series and extend the bed. Oh yeah, and this third axle can also be driven by an electric motor.

For some, the addition of a second rear ... or "lazy" axle for increased load capacity. The Blue Oval might be considering it as a way to add an electric motor for a hybrid or PHEV conversion ...

Ford is developing a bolt-on third axle that turns any pickup truck or SUV into a 6x6, and it seems like a brilliant idea. Although most 6x6 conversions are made to improve off-roading ability or ...