This is actually a kit that we have put together that includes all bearings and pinion seal for the AAM 9.25 4X4 front differential found in 2003-2016 Dodge Ram 2500 and 3500 series trucks. It is made up of all genuine AAM parts. Please note that the bearing part numbers in this kit do not always match the original part numbers, but they are dimensionally the same. Shipping is FAST and FREE in the continental U.S.