Just sharing what I stumbled across: no association, blah, blah, blah.
http://www.max4rv.com/index.html
Copied from their web page.
Standard Four Wheel Drive
The Max4 switches from 2WD to 4WD in a snap for tackling winter snow, mountain roads, muddy conditions, off road trails, slick boat ramps and more. It is equipped with a torsion bar 4WD system based on the same system used on Ford's pick-ups and full-size SUVs. This system allows the front wheels to move up and down independently providing a smoother ride, better handling and an increase in turning radius.
http://www.max4rv.com/index.html
Copied from their web page.
Standard Four Wheel Drive
The Max4 switches from 2WD to 4WD in a snap for tackling winter snow, mountain roads, muddy conditions, off road trails, slick boat ramps and more. It is equipped with a torsion bar 4WD system based on the same system used on Ford's pick-ups and full-size SUVs. This system allows the front wheels to move up and down independently providing a smoother ride, better handling and an increase in turning radius.