It depends on your vehicle, not very expensive but again it depends on your vehicle, take your vehicle in get a estimate then if it's agreeable you can say yes or no, I hope that helps.
It depends on several factors, there is no "standard" cost or "usual" job. There are many parts to the braking system that could need to be replaced so you should take your car in, let the professionals look at it and give you an accurate estimate. If you don't like the price you can always say no.
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