Product Details: The Allison Transmission 2-Pin Speed Sensor Assembly is designed to provide reliable and accurate readings to the transmission control module. This assembly is designed to monitor the transmission speed and ensure proper alignment and torquing of the mounting bolts for secure and reliable installation. The assembly is constructed from durable materials and is designed to withstand the rigors of the road. This assembly is an ideal choice for Freightliner applications and is sure to provide reliable and accurate readings. FleetPride is your First Click in Heavy Duty®.