An articulated loader has an articulated chassis and two A-frames. The
points of the A-frames face each other. The articulated chassis includes
a front portion and a rear portion. Likewise, there is a front or first
A-frame and a rear or second A-frame. The A-frames are connected to the
overall chassis at points close to but offset from the point of vehicle
articulation via ball joints and via hydraulic suspension cylinders
toward the wider portions of the "A"s. The vehicle is propelled along the
ground by tracks that are independently suspended. The A-frames are of
approximate equal length along the axis of the vehicle and the ball
joints are located as close as practical to the articulation joint. Thus,
any vertical forces at the ball joints due to variations in tractive
efforts for the vehicle tend to be equal and opposite in direction and
to, therefore, minimize any chassis height variations.