Ok, that was the wrong sensor. That is the output speed sensor on the transmission. This sensor is only used for calculations for the trans electronic governor. This is the sensor that everyone thinks runs the speedometer. the correct sensor is the rear speed sensor, it goes into the top of the rear differential housing. It is monitored by the abs module, the abs module sends the vehicle speed message out to the other modules, including the instrument cluster. Here is a picture of the sensor.