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.
Fuses
The vehicle’s fuses are contained in three fuse boxes.
The interior fuse box is behind the driver’s coin tray. To access it, remove
the tray by turning the dial counterclockwise then pulling ...
Starting System
Starter Overhaul
Exploded View
NOTE: Refer to the Exploded View if needed during this procedure.
Armature Inspection and Test
Remove the starter.
Inspect the armature f ...
Output Shaft (Countershaft) Speed Sensor Replacement (A/T)
Remove the air cleaner assembly.
Disconnect the output shaft (countershaft) speed sensor connector, and
remove the output shaft (countershaft) speed sensor (A).
...