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.
Manual transmission models Shifting
■Shift Lever Operation+
Fully depress the clutch pedal to operate the shift lever and change gears,
then
slowly release the pedal.
Depress the clutch pedal, and pause for a few seconds be ...
Adding Waypoints
Add up to four waypoints (pit stops) along the route to your destination.
Waypoints allow you to stop for gas or food, for
example, and then continue on to your
destination.
Press the MAP/GUID ...
Rear Brake Shoe Replacement
caution
Frequent inhalation of brake pad dust, regardless of material composition,
could be hazardous to your health.
Avoid breathing dust particles.
...