Abstract: A planetary transmission of a vehicle drive train comprises an input section including three planetary gear sets and three brakes that are selectively operable to condition the three gear sets for respectively establishing a forward converter drive, a reverse converter drive and a direct drive at an output shaft of the input section. The planetary transmission further comprises an output or range section coupled to the output of the input section. The output section includes three planetary gear sets connected together so as to form a three-stage planetary set and three brakes are respectively associated with the three gear sets and selectively operable to control the three gear sets such that low, intermediate and high output speeds are established for every input to the output section with drive torque being delivered by all three gear sets for low speed operation, by two gear sets for intermediate speed operation and by a single gear set for high speed operation.

Abstract: Apparatus for a transfer case that has a multiple path drive system including a neutral position, a first drive path of one speed range and a second drive path of a different speed range, the apparatus including (1) a hydraulic cylinder assembly having piston means movable to three positions and a rod connected to the piston means and to a shift mechanism of the transfer case for moving the shift mechanism of the transfer case selectively to one of the three positions of the drive system, and (2) a hydraulic control valve means for selectively controlling from a remote location operation of the hydraulic cylinder assembly.

Abstract: A breathing system for an automatic transmission including a fluid torque converter, an oil pump, an overdrive means and an auxiliary gear means each having its own housing and being air-tightly connected with each other in series in said order, the system including a passage extending through the housings of the oil pump, the overdrive means and the auxiliary gear means for releasing the internal space confined in the assembly of the housings to the atmosphere, the passage including a loop portion at a middle portion thereof including two parallel passages, one being located at a lower gravity potential level than the other.