The wheel speed sensor is incorporated into the front wheel bearing-hub assembly and will have to be removed and replaced as a unit. Here is a wheel bearing-hub assembly replacement tutorial for you as well:
I've attached picture steps below on how to change the wheel speed sensor and hub assembly on your truck. Hope this helps and thanks for using 2CarPros.
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.