Having anti-lock brakes on only one axle: Question Having anti-lock brakes on only one axle: Answers Will not make a difference in braking. Will provide increased control in braking. Will likely cause the air brakes to malfunction. Explanation If a vehicle has anti-lock brakes on just one axle, the driver will still have more control during braking than they would without any anti-lock brakes. This questions appears in the following tests: Arkansas Double Delaware Combination Hawaii Tank Hawaii Combination Iowa Double Maine Combination Nebraska Combination Nevada Tank New Hampshire Combination New Mexico Double New Mexico Combination New Mexico Combination Utah Combination Virginia Double