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 Cover Selector Control Shaft Oil Seal Replacement (A/T)
Special Tools Required
Driver Handle, 15 x 135L 07749-0010000
Bearing Driver Attachment, 22 x 24 mm 07746-0010800
Remove the oil seal from the end cover.
Install the new oil ...
Under-Cowl Panel Replacement
NOTE: Take care not to scratch the body.
Remove these items:
Windshield wiper arms
Cowl cover
Remove the bolts, then remove the under-cowl panel ...
Brake Light, Taillight, Back-Up Light and Rear Turn
Signal Light Bulbs
When replacing, use the following bulbs.
Brake/Taillight: 21/5 W
Back-Up Light: 16 W
Rear Turn Signal Light: 21 W (Amber)
1. Pry on the edge of the cover using a flat-tip
screwdriver to remove ...