A torque transfer mechanism for a vehicle, including a housing and a pump disposed therein. The housing includes an exterior surface, an interior surface, and an interior compartment. The interior surface of the housing includes at least one pocket formed therein with the at least one pocket having a plurality of pocket surfaces, which define an interior area. The pump includes a pump portion and a pump housing. The pump housing includes at least one projecting tab extending outwardly therefrom. The at least one projecting tab disposed within the at least one pocket to secure the pump within the transfer case housing. The at least one projecting tab has a pump crown disposed thereover, with the pump crown engaging each of the plurality of pocket surfaces and substantially filling out the interior area.

A transfer case having a shift mechanism. The shift mechanism may include a shift rail, a range shift assembly, a mode shift assembly, and a sector cam. The sector cam may control movement of the range shift assembly and the mode shift assembly when the sector cam is rotated.

A transfer case having a shift mechanism. The shift mechanism may include a shift rail, a range shift assembly, a mode shift assembly, and a sector cam. The sector cam may control movement of the range shift assembly and the mode shift assembly when the sector cam is rotated.

There is provided a tractor with an improved clutch housing structure, which includes a hydro-static transmission (HST) positioned between a clutch and a secondary transmission, to transmit power. The tractor comprises: a clutch housing with the clutch and the HST positioned inside; a partition to separate the clutch from the HST formed inside the clutch housing; and a heat-radiating opening formed in the partition.

A venting arrangement for use with power transfer assemblies of the type used in motor vehicle driveline and drivetrain applications includes a vent oil deflector assembly. The vent oil deflector assembly is associated with an inside wall within an enclosed chamber and is configured to deflect lubricating oil splashed within the chamber away from an air venting passageway. The deflection feature and the venting feature are integrated into a common assembly.

A venting arrangement for use with power transfer assemblies of the type used in motor vehicle driveline and drivetrain applications includes a vent oil deflector assembly. The vent oil deflector assembly is associated with an inside wall within an enclosed chamber and is configured to deflect lubricating oil splashed within the chamber away from an air venting passageway. The deflection feature and the venting feature are integrated into a common assembly.

An integrated pinion shaft and constant velocity joint (PS/CVJ) assembly for use in motor vehicle driveline applications to transfer torque between a propshaft and a ring gear. The PS/CVJ assembly includes a pinion shaft having a pinion gear segment meshed with the ring gear and a hollow pinion shaft segment. The PS/CVJ assembly also includes a constant velocity joint having an inner race coupled to the propshaft and an outer race integral with or fixed to an end portion of the pinion shaft segment.

An integrated pinion shaft and constant velocity joint (PS/CVJ) assembly for use in motor vehicle driveline applications to transfer torque between a propshaft and a ring gear. The PS/CVJ assembly includes a pinion shaft having a pinion gear segment meshed with the ring gear and a hollow pinion shaft segment. The PS/CVJ assembly also includes a constant velocity joint having an inner race coupled to the propshaft and an outer race integral with or fixed to an end portion of the pinion shaft segment.

A power transfer unit includes an input shaft extending along an input axis and an intermediate drive shaft extending at least partially through the input shaft along the input axis. The power transfer unit further includes a ring gear assembly having a ring gear and a ring gear shaft coupled to the ring gear. The ring gear shaft at least partially surrounds the input shaft and extends along the input axis. The power transfer unit also includes a collar coupled to the input shaft. The collar surrounds the input shaft and is movable relative to the ring gear shaft along the input axis between an engaged position and a disengaged position. When the collar is in the engaged position, the input shaft is coupled to the ring gear shaft. When the collar is in the disengaged position, the input shaft is decoupled from the ring gear shaft.

A power transfer unit includes an input shaft extending along an input axis and an intermediate drive shaft extending at least partially through the input shaft along the input axis. The power transfer unit further includes a ring gear assembly having a ring gear and a ring gear shaft coupled to the ring gear. The ring gear shaft at least partially surrounds the input shaft and extends along the input axis. The power transfer unit also includes a collar coupled to the input shaft. The collar surrounds the input shaft and is movable relative to the ring gear shaft along the input axis between an engaged position and a disengaged position. When the collar is in the engaged position, the input shaft is coupled to the ring gear shaft. When the collar is in the disengaged position, the input shaft is decoupled from the ring gear shaft.