The sealing rings are synthetic resin with chamfered ends. Check the condition of the sealing rings, and replace them only if they are worn, distorted, or damaged.
For a better fit, squeeze sealing rings together slightly before installing them.

Apply ATF to the new sealing rings, then install them on the secondary shaft.

After installing the sealing rings, verify the following:
The rings are fully seated in the groove.
The rings are not twisted.
The chamfered ends of the rings are properly joined.
A/T Differential Carrier and Final Driven Gear Replacement (A/T)
Remove the final driven gear (A) from the differential carrier (B). The
final driven gear bolts have left-hand threads.
Install the final driven gear on the differential carri ...
Features
The heating and air conditioning system in your vehicle provides a comfortable
driving environment in all weather conditions.
The standard audio system has many features. This section describes tho ...
Other Features
This section describes the useful functions incorporated into the
navigation system. ...