An electronic, high-efficiency vehicular transmission, an overrunning, non-friction coupling and control assembly and switchable linear actuator device for use in the assembly and the transmission are provided. The device controls the operating mode of at least one non-friction coupling assembly. The device has a plurality of magnetic sources which produce corresponding magnetic fields to create a net translational force. The net translational force comprises a first translational force caused by energization of at least one electromagnetic source and a magnetic latching force based upon linear position of a permanent magnet source along an axis.

A shift arrangement for a motor vehicle transmission has a housing. At least two push rods are mounted on the housing so as to be movable in an axial direction between a neutral position and a shift position. The push rods can each be coupled to a shift clutch. At least two return rods are mounted on the housing. The return rods are each coupled to one of the push rods so that a push rod and the return rod associated therewith are moved in opposite axial directions. A shift cam of a shift member can be aligned with a push rod or with a return rod for the purpose of selecting, and can transmit a pushing force to a selected rod. A driving feature is arranged on the shift member and can transmit a pushing force in order to move an unselected rod into the neutral position.

A landing gear system including a landing gear actuator assembly arranged to selectably provide an increased torque output to a cross-shaft adaptor rotationally coupled to a cross-shaft of a trailer landing gear assembly. A rotational engagement mechanism is arranged to, in response to a remote signal, shift a rotational engagement mechanism to selectably couple the cross-shaft adaptor with a light gear set or selectably couple the cross-shaft adaptor with a heavy gear set. The landing gear actuator includes a slip-clutch assembly to dampen, reduce, or eliminate rotational shock caused when retracting or extending the legs of the landing gear system.

A landing gear system including a landing gear actuator assembly arranged to selectably provide an increased torque output to a cross-shaft adaptor rotationally coupled to a cross-shaft of a trailer landing gear assembly. A rotational engagement mechanism is arranged to, in response to a remote signal, shift a rotational engagement mechanism to selectably couple the cross-shaft adaptor with a light gear set or selectably couple the cross-shaft adaptor with a heavy gear set.