Transfer Case Description and Operation
The Honda AWD transfer case (1) is mated to the rear side of the 5-speed automatic transmission assembly beside the differential. The transfer case assembly consists of an aluminum case and side cover, drive gears, and driven gears. The gear set is a hypoid design. The drive gears and driven gear shafts are supported by tapered roller bearings. Pinion depth, gears backlash, and bearing preloads are adjusted during production using 25, 40, and 80 mm shims of various thickness. The transfer case internal components are lubricated with hypoid gear oil.
The transmission (1) differential drive gear rotates the transfer output sub-shaft (2). The transfer output sub-shaft is splined to and drives the transfer case input gear (3). The transfer case output shaft (4) transfers power through the output flange to the variable torque management rear differential (6) via a 2-piece propeller shaft assembly (5).