This drive joint transmits torque from the front axle differential to the wheel hub on the host tractor. It is the original-equipment component from the tractor manufacturer, machined to the same spline geometry and length as the assembly it replaces. A worn joint produces a clicking noise during turns and leads to uneven tire wear. The joint is supplied as a complete assembly with the internal cross and bearing cups pre-packed with grease; no additional shimming is required during installation.