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.
Driving with the Paddle Shifters (Sport only)
Using the Paddle Shifters in D position (D-Paddle Shift Mode)
When you are driving in D position, you can shift the transmission up or down
manually with the paddle shifters.
To shift up or down ...
A/T Differential Carrier Bearing Preload Inspection (A/T)
Special Tools Required
Driver Handle, 15 x 135L 07749-0010000
Bearing Driver Attachment, 72 x 75 mm 07746-0010600
Preload Inspection Tool 07HAJ-PK40201
NOTE: If the transmission housing, torq ...
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).
...