Fitment： 2003-2005 Chevrolet Astro 2003-2005 GMC Safari Item Description： Fits Front+Left+Right Brand New ABS speed sensor Direct replacement Built to strict quality control standards What is ABS sensor？ An anti-lock braking system (ABS) is a vehicle safety system that allows the wheels of a car to maintain tractive contact with the road surface while braking, preventing the wheels from locking up (ceasing rotation) and avoiding uncontrolled skidding. It is an automated system that uses the principles of cadence braking. .
