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Question:

Rear wheel bearings - how important to replace as a pair?

Is it important to replace the rear wheel bearings both at the same time (both left and right)? Or is that only done because of convenience (to save the trouble of replacing the other one in the near future)?

Answer:

This sounds like the technician that diagnosed the vehicle either had bad hearing or he just did not care and said tell him it needs both of them to the service writer! Yes, the idea about they have equal wear (as stated by the other poster) it true, but, I am a fan of if it ain't broke don't fix it on the wheel bearings, because there is nothing that has to be taken off as an assembly (each side is an individual labor) So I would recommend replacing them only as they wear out! (tell him to tell you which side is making the noise!!!) ADDED; Also Please, When asking ANY automotive question give as much vehicle information as possible YMM (year, make, model) and engine size if possible! This is very important when diagnosing a problem, no matter how small!
i see it like this, both sets have similar mileage. if one side has failed, the other will soon. take the time to do them both at the same point since you will already have everything out and available.
What occurs in case you spin the wheel by way of hand? Does the project in easy terms happen while under load. If the clunking is time-honored, yet quickens as you advance highway velocity then it truly is in all risk bearings or chain. Bearings: with the wheel in place, you on the ingredient of the motorbike, draw close the precise and the backside of the wheel. are you able to sense flow once you push the precise far flung from you, and pull the backside in the direction of you? Rotate the wheel ninety degree and attempt lower back. in case you are able to twist the wheel this way then you definately've duff bearings. The chain: it truly is available for pins interior the chain to break, yet with out the chain breaking. i've got additionally had a ingredient plate ruin. the two issues might reason a rhythmic clunking. you're able to desire to furnish the chain a radical sparkling, oil, and inspection. seek for cracked ingredient-plates, stiff chain hyperlinks, something somewhat unusual. it truly is a actual soreness while a chain breaks.
It's unnecessary to change/replace rear wheel bearings both at the same time. You can only change the faulty side.
Just the faulty side. Any of the others will clearly tell you when they want to be replaced. The other could go next week or 25k from now. If the fronts did not go first, then are you sure it needs replacing? It should have a tell-tale whrrrrring sound when the wheel is spun off the ground. But the acid test is it gets louder when you swerve (carefully). Louder on a right swerve means left bearing history. Louder on left swerve means right bearing history. 45mph in light traffic Except for odd-ball occurrences, the very first thing a bad bearing should tell you is your car may no longer be worth fixing. That's because all of the other fixes needed at high miles, and soon coming, cost far more than the value of additional miles. Depending on the make (like Subaru) and the use (like gravel truck) there are exceptions to that way of thinking.

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