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Q:

Do I need to replace wheel bearings if I only drive 3-5 miles a day? on 1999 Toyota Solara

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
1999 toyota solara with 168,000 miles. Had a humming sound when traveling at highway speeds from the rear of the car for a while and mechanic said the wheel bearing on the left rear wheel needed replacement. Says approx $400 to replace.

Normally would bite the bullet and pay to repair, but I only drive literally 2-3 miles a day (to the train station and back) and anticipate having the car for just another year or two.

Can I keep driving on "bad" bearings until they go out completely or will I cause further damage doing that? What happens when they go out completely?
(1) Answer
Wheel bearing should be replaced right away.. it can lead to uneven tire wear and it creates alot of heat in the bearing which could eventually lead to a extreme heat and maybe even seperation of tire from axle.. it really dont matter how far you drive it should be replaced