Get your semi Ready for the Road Aheadâ„¢ with an effective transfer of engine power, with the Spicer S44 Series Full Round Greaseable Universal Joint. Thanks to its cross-shaped design, this universal joint is able to send power to the wheels from the driveshaft as it moves with the suspension. Fashioned with precise measurements and a durable body to resist rust, corrosion, and weathering.