The Genuine BMW Differential Carrier Shim Set is a set of shims that are used to adjust the clearance between the differential carrier and the ring gear in a BMW vehicle. This particular set includes shims with thicknesses ranging from 1.72mm to 1.96mm, allowing for precise adjustments to be made. These shims are made by BMW and are designed specifically for their vehicles, ensuring a perfect fit and optimal performance. They are essential for maintaining proper gear mesh and preventing excessive wear on the differential components. This product is part number 33139065735 and can be used in various BMW models.