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.
Transmission End Crankshaft Oil Seal Installation - In Car
Special Tools Required
Driver Handle, 15 x 135L 07749-0010000
Oil Seal Driver Attachment, 96 mm 07ZAD-PNAA100
Remove the transmission.
M/T model
A/T model ...
List of Categories
* Stored in “Fav. Subcategory” by factory default. ...
HandsFreeLink System Description
HandsFreeLink Control Unit Connector for Inputs and Outputs
...