An Axle Repair Disc Tool is used for setting the pinion shim height in rear axle differentials during repairs or maintenance. This tool assists in achieving the correct shim thickness to ensure proper gear mesh and alignment within the differential. It consists of a disc with adjustable components to accommodate different shim thicknesses. By allowing proper adjustments, the tool ensures that the pinion gear is correctly positioned relative to the ring gear, which is necessary for optimal differential operation, gear longevity, and reducing noise and vibration.Attributes:• Allows proper shim placement for optimal gear mesh.• Helps achieve optimal differential performance.Applications: An Axle Repair Disc Tool is used during the maintenance or repair of rear axle differentials, when setting the pinion shim height, to ensure proper gear engagement and alignment.