The viscous centre differential is an important part of the Honda CR-V's 4WD system, as it allows the front and rear wheels to rotate at different speeds when necessary. Without the viscous centre differential, the CR-V would not be able to operate in 4WD mode, and would only be able to operate in 2WD mode.
Additionally, attempting to use the CR-V's 4WD system without the viscous centre differential could cause damage to the transmission and other driveline components. Therefore, it is not recommended to use a manual 4WD Honda CR-V transmission without the viscous centre differential.
