A component that can act as a differential or a slip-limiting device, a multi-plate transfer (or multi-plate clutch) is a set of several hydraulic clutches that are progressively engaged and disengaged to limit slip and/or allow differential action of the wheels. Most MPTs are computer-controlled, with speed sensors to determine when to engage/disengage the clutches. Some Ford Explorers and Chevrolet Tahoes, for example, use an MPT in place of a center differential.