Prepare your semi to be Ready for the Road Aheadâ„¢ with an efficient transfer of engine power, with the Spicer 1710 Series Half Round Greaseable Universal Joint. By using a flexible cross-shaped design, this universal joint is able to transfer power from the drive shaft to the wheels while the drive shaft moves up or down with the suspension. Constructed with precise measurements and a durable body to resist weathering, corrosion, and rust.