Information: High quality chassis partseries products. Made with high strength steel tubing for superior strength and durability. Stable performance, reliable quality and long service life Uniform thickness, no blow holes, slag, cracks, tearing, or incomplete fusion. Measured by specialized inspection tools after welding to make sure assemble hole , bushings insert, and installation sizes are proper. Professional InstallerisHighly Recommended(No Instruction Included) Alignment Highly Recommended After Install Type:Differential Axle Carrier AxleCoverBoltHoleQuantity:9 Tranmission Type??AWD CarrierMaterial??Steel GearRatio??3.27 VehicleLocation??Rear FitmentType??Direct Replacement Part Number:23156305, 84110753, 2993015, 22927263 Quantity:One Piece Note-1: Fits AWD Type only Important Warning: Warranty For This Unit Will Be Voided If The Following Procedures Are Not Followed. Proper OEM Approved Oil (Type) And Correct Amount Of Oil Must Be Added Upon Installation. This Unit Is Shipped With Minimum Oil To Prevent Damage (Rust) During Shipping. This Unit Must Be Filled With OEM Approved Oil Only. The Vehicle Must Be Inspected Prior To Installation And All Worn Related Components Must Be Replaced Prior To Installation Of The New Unit.Compatibility Chart?? For 2013-2019 Cadillac ATS AWD 6AT Rear Differential Axle Carrier 3.27 Ratio Note: Need to Refuel Oil Type: 75W-90Package Content?? 1*Differential Axle Carrier