The 4WD system uses the centre differential with limited slip device.
The front differential is housed in the transfer (4WD). The centre differential is housed in the transmission in the place of the front differential for 2WD.
A viscous coupling unit (VCU) is used for the centre differential limited slip device, and is located in the rear of the front differential.
[23] AUTOMATIC TRANSMISSION - - 4WD SYSTEM - GENERAL INFORMATION