1957 BUICK BRAKE TROUBLE DIAGNOSIS SECTION 9-B 9-5 INSPECTING AND TESTING 1957 BUICK BRAKES Inspecting 1957 Buick Brakes At reasonably frequent intervals the brakes should be inspected for pedal reserve, which is the clearance between the pedal pad and the toeboard when the brake pedal is firmly depressed while brakes are cold. For average driving, [...]