This kit from Yukon Gear includes all the necessary parts for a direct replacement of the differential carrier bearing setup. The brand is known for its high-quality products and this carrier bearing set-up kit is no exception. The manufacturer part number is YT SB-D30. The kit is classified as a differential carrier bearing setup kit.. It is designed to fit perfectly without any modification and is not a custom bundle. The kit is suitable for car and truck parts and accessories and falls under the category of additional differential parts.