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e.g. busses, garbage trucks, etc are very squealy when they brake. Is this due to their use of air brakes, or apathetic maintenance, or something else?

e.g. busses, garbage trucks, etc are very squealy when they brake. Is this due to their use of air brakes, or apathetic maintenance, or something else?

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[–] • 0 pt

Ya, if you don't turn the rotors then the new break pads will squeal. Turning the rotors may increase the life of the new pads slightly but hell man, taking them off and taking them to someone with a lathe is a pain in the ass in my opinion.

I'm sure there's other causes but this one I'm personally familiar with.