This differential friction disc is a component of the differential mechanism located in the front axle of the host tractor. It transmits torque between the differential side gears and the differential case, allowing the axle shafts to rotate at different speeds during turns. A worn disc reduces the differential's ability to manage torque distribution, which can lead to wheel slip or driveline binding during cornering. This original part is machined to the same friction-surface finish and thickness as the original assembly, so the differential's preload and breakaway torque remain within the manufacturer's specification. No shimming or adjustment is required when replacing the disc as a set.