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 ...

Rivian’s electric trucks and SUVs are capable machines ... can overheat the motors and limit performance. The answer? A bolt-on low-range gearbox for every corner, of course.

Today’s full-size pickup trucks have far more power and capability ... as the publication found a patent application outlining a bolt-on third axle conversion for the top-selling F-150.