Product Details: Equip your semi to be Ready for the Road Aheadâ„¢, with the Spicer 1810 Series Half Round Greaseable Universal Joint, a crucial component for the effective transfer of engine power. This cross-shaped universal joint allows the drive shaft to transmit power to the wheels, even as it moves up and down with the suspension. Manufactured with precise measurements and a durable body to resist corrosion, weathering, and rust.