The advantages disc brakes offer over drums have been known for a while--heat dissipation and fade resistance, water-shedding ability, and so on. Discs have been standard on front axles much longer ...

Though a decade ago it was far from the case, nowadays, the likelihood for a technician to work on a newer truck with air disc brakes (ADBs) is about the same as one with drum brakes. “Almost half of ...