A coupling device (11) of the type including a clutch assembly (29) actuation of which is responsive to fluid pressure in a clutch piston apply chamber (43), and a series of fluid passages (53,55,57,59) communicating the chamber to a control valve assembly...

A differential gear mechanism of the limited slip type including a clutch pack (35) operable to retard rotation between the side gears (21,23) and the gear case (11). The clutch pack may be loaded, to retard differentiating action, by means of a retarding ...