Equip your vehicle to be Ready for the Road Ahead , with the Neapco 2.31" x 5.5" 46-Spline Midship Stub Shaft, a key device that improves overall power transfer. By utilizing a sophisticated design, this replacement piece is able to transmit rotational power so that a vehicle's wheels can rotate in a forward or backward motion. Fabricated with boosted strength and reliability. FleetPride is your First Click in Heavy Duty .