This extreme vehicle layout combines total traction with maximum maneuverability. The first two numbers indicate four wheels with four driven ends, while the final number specifies that all four wheels can steer. It is primarily found on heavy construction equipment, specialized military vehicles, and custom monster trucks designed for tight, technical terrain.
Heard on the job
The military spec requires a 4x4x4 chassis so the vehicle can crab-walk out of deep ruts.