These 'red flags' include bowel or bladder dysfunction, extremity weakness or numbness, severe symptoms that do not subside after a few days, or pain that prohibits everyday activities. A MYRIAD OF CAUSES. A cause of back pain is muscle strain and spasm.
When you consider all the above factors, front brake pads typically last between 40,000 miles for stop and go city driving and approximately 60,000 miles for highway commuting driving. Rear brake components typically last around 80,000 miles for all conditions.
Brake pads should typically be replaced when approximately 1/8 to 3/16 of friction material remains on the steel backing plate. Brake rotors should be replaced before their thickness has reached the prescribed Worn Rotor Minimum Thickness limit (expressed in millimeters) engraved on the edge of the brake disc.