FITS - Compatible with for Chevrolet Express 2500 2003-2005 (Gfor VW 7,200 Lbs.), Express 2500 2006-2017, Express 3500 2003-2017/2009-2012, Express 4500 2014-2018; Compatible with for GMC Savana 2500 2003-2005 (Gfor VW 7,200 Lbs.), Savana 2500 2006-2017, Savana 3500 2003-2017, Savana 4500 2009-2012/2014-2017. DETERMINE LOCKING UP OR NOT FAST- Our ABS sensors are able to measure the rotational speed of the wheels and pass them fast to the car's Engine Control Module (ECM), based on which the ECM determines if the wheels are locking up.
