Purpose/Function
The differential absorbs the difference in the rotation speed between the left and right driving wheels so that the vehicle drives smoothly when differences occur due to cornering or driving on rough roads.
Construction
The differential consists of the ring gear, differential gear case, side gears, pinion gears, and pinion shaft.
The differential gear case is engaged with the ring gear and rotates as a single unit.
The side gears are engaged with the drive shaft (LH) and drive shaft (RH) and rotates as a single unit for each.

Operation
If there is no difference in rotation speed between the left and right driving wheels, the left and right side gears rotate together with the differential gear case and pinion gears.

If there is a difference in the rotation speed between the left and right driving wheels, the difference in the rotation speed between the left and right side gears is absorbed by the pinion gears rotating around the pinion shaft.

Differential [C66 M R]
Oil Seal (Differential) Replacement [C66 M R]Front Bumper Removal/Installation
CAUTION:
Affix the protective tape to the position (vehicle body side) shown in the
figure to prevent scratches and damage.
1. Disconnect the negative battery cable..
2. Remove fasteners A.
3. Pull the front over fender in the direction of the arrow shown in the figure ...
Outer Mirror Glass Installation
1. Connect the mirror heater connectors. (with heated outer mirror)
2. Connect the blind spot monitoring (BSM) warning indicator light connector
(with blind spot monitoring system).
NOTE:
Lightly pull the blind spot monitoring (BSM) warning indicator light connector
and verify t ...
Oil Seal (Differential) Replacement [Fw6 A EL, Fw6 Ax EL]
Transaxle Case Side
1. Remove the front under cover No.2..
2. Drain the ATF..
3. Disconnect the drive shaft (LH) from the transaxle..
CAUTION:
The oil seal is easily damaged by the sharp edges of the drive shaft splines.
Do not let the splines contact the oil seal.
4. Remove ...