Product Details: Ensure your semi truck is Ready for the Road Aheadâ„¢ with a secure driveshaft connection, with the Spicer 3.125" 1310 Series Driveshaft Flange Yoke. By acting as the connection point between either the transmission, transfer case, or shift differential, this replacement piece allows a driveshaft to transfer its rotational torque. Built with a multipurpose design to be suitable for a wide range of vehicles.