Vector neutral truck

A self-propelled vehicle, comprising:

• a main frame which includes a main-frame longitudinal axis,
• a first wheel/suspension assembly connected to said main frame near a first end of said main frame,
• a second wheel/suspension assembly connected to said main frame near a second end of said main frame,
• a power plant supported by said main frame,
• a power transmission means connected to said power plant for transmitting power from said power plant to said first wheel/suspension assembly or to said second wheel/suspension assembly,
• a steering system connected to said first wheel/suspension assembly and said second wheel/suspension assembly, wherein said steering system includes a steering controller which turns said first wheel/suspension assembly and said second wheel/suspension assembly simultaneously, wherein said first wheel/suspension assembly and said second wheel/suspension assembly are simultaneously turned in opposite directions,
• a dump box and dump box hoist mechanism supported by said main frame, and
• an operator's cab supported by said main frame along a transverse cab axis at a substantially constant longitudinal position along said main frame, wherein said transverse cab axis is substantially perpendicular to said main-frame longitudinal axis, and wherein said steering controller is located inside said operator's cab, and wherein said operator's cab is located at a medial position on said main frame along said main-frame longitudinal axis.