This product is a GM Genuine Parts item with a one-year warranty. It includes only part reference #9 on the diagram and is a direct replacement for your vehicle. The product is genuine OEM and replaces part numbers 23114032 and 84489152. The SKU for this item is also 85114564. Please note that this product is perfect for those looking for additional differential parts. It is compatible with various GM vehicles and is a high-quality item that will ensure your vehicle runs smoothly. Purchase this product today and experience the difference in your vehicle's performance.