Toyota Highlander Service Manual: Power steering system

Power steering

...

Precaution

1. HANDLING PRECAUTIONS FOR STEERING SYSTEM (a) Care must be taken when replacing parts. Incorrect replacement could affect the performance of the steering system and result in a driving hazard. ...

More about Toyota Highlander:

Selecting trailer ball
Use the correct trailer ball for your application. Trailer ball load rating matches or exceeds the gross trailer weight rating of the trailer. Ball diameter matches the size of the trailer coupler. Most couplers are stamped with the required trailer ball size. Shank len ...