Vehicle make/model = 2005 CHEV., SILVERADO Mileage = 22500 Engine size = 4.3 dash lights = NO work done prior = FRONT END ALIGNMENT, LOOSE LOWER CONTROL ARM work done to repair = REPLACED WORN ROTORS tech = ABS question = BRAKE PEDAL WILL VIBRATE WHEN ALMOST STOPPED. FOUND CRACKED WHEEL SPEED SENSOR. CAN I REPLACE THE SENSOR ITSELF WITH DORMAN PART # 970011, OR SHOULD THE ENTIRE WHEEL HUB ASSEMBLY BE REPLACED?
JK: Yes you can replace the sensor. These are common for causing this problem you have. If the sensor broke and a piece is missing, then it may have fallen into the hub. If that happened, it will destroy the hub. If the outer casing of the sensor just broke off and it is stuck in the mounting hole of the hub, then you can just pry that piece out and you will be ok. With new sensor in hand you will be able to tell if any pieces are missing and possibly in the hub. Depending on how the sensor is cracked, suggest looking in the sensor mounting hole of the hub while turning the hub to look at the toothed ring and make sure it is not damaged, or possibly caused the sensor to crack. I would suggest a GM sensor. Have seen a few times where an aftermarket sensor can cause different problems because they do not send out a perfect signal, but that is not real common. Up to you.