Prepare your semi to be Ready for the Road Ahead , with the Neapco 3" 16-Tooth Steel Driveshaft Slip Yoke that provides reliable driveshaft power when crossing rough terrain. By using a Y-shaped design, this replacement slip yoke allows the driveshaft to move and flex without experiencing mechanical failure or loss of power. Built with hardened steel to minimize wear and deliver long-term dependability. FleetPride is your First Click in Heavy Duty .