Abstract: A vehicle differential which includes an integral positive displacement pump, along with adjustable fluid controls and a movable surface for holding fluid controls in position, infinitely from full open to full closed, where as relative rotation of differential half-axles and side gears would cause positive displacement pump to force fluid past fluid controls and position of fluid controls would restrict the fluid flow thus effectively limiting the “slip” of the differential.

Abstract: The present invention comprises at least one cylinder, such as a hydraulic cylinder connected between a vehicle or machine upper structure frame and a dual track undercarriage which is used to shift the weight of a tracked vehicle so that the vehicle or machine turns easier, suffers less componentry wear, and inflicts less damage on a surface under the tracked vhiicle or machine. A simple electronic control can be used to permit an operator to indicate the desired direction of turn, which then actuates a sensor which signals an electric solonoid operated hydraulic valve which then directs hydraulic fluid to the cylinder which shifts the weight as required for the direction of turn.