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.
Steering Rack Guide Removal/Installation
NOTE: During removal/installation, do not allow dust, dirt, or other foreign
materials to enter the steering gearbox.
Remove the steering gearbox.
Loosen the locknut (A), then ...
Spark Plug Inspection
Remove the ignition coils and the spark plugs.
Inspect the electrodes and the ceramic insulator:
Burned or worn electrodes may be caused by these conditions:
...
Checking the Battery
Check the condition of the battery monthly by looking at the test indicator window.
The label on the battery explains the test indicator’s colors. The test indicator
window’s location differ ...