Re: Anti lock brakes
On your truck there should be a wheel speed sensor at each wheel and a vehicle speed sensor on the transmission tailshaft. Get up and clean around all the sensors, good amounts of dirt and mud can affect the way the system works. Take off the connectors and put some dielectric gel inside. It keeps water from gettin in there and shorting the contacts out. And last, check the tire pressure. If there's more than a 10% difference in the rolling radius of the front and rear tire, the ABS will activate. Hope this helps.