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.
Changing Your Route
DEST button (when en route)
This section describes how to alter your route, add an interim “waypoint”
(pit stop),
choose a different destination, cancel your current destination, and continue ...
Service Station Procedures
Refueling
1. Park with the driver’s side closest to the service station pump.
2. Outside of the vehicle, open the fuel fill door by pulling its notched edge.
3. Remove the fuel fill cap slowly. ...
M/T Differential Backlash Inspection (M/T)
Place the differential assembly on V-blocks (A), and install the right
driveshaft (B) and the left driveshaft (C).
Measure the backlash of both pinion gears (D) with a dial in ...