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.
Shift Cable Adjustment (A/T)
Remove the center console.
Shift the transmission to N.
Remove the nut securing the shift cable end.
Rotate the socket holder (A) on the shift cable ( ...
ATF Filter Replacement (A/T)
Remove the air cleaner assembly.
Disconnect the ATF cooler hoses (A) from the ATF filter (B).
Remove the ATF filter holder (C).
Remove the ATF filter, and ...
Handling the Unexpected
This chapter explains how to handle unexpected troubles. ...