aFe Power 46-70270 Dodge Ram Rear Differential Cover (Raw; Street Series) Constructed of durable die-cast A356 aluminum with reinforced ribs and machined fins Built-in external fins, magnetic drain plug and 1/8" NPT calibration plug set to the factory fluid level Fits the Dodge/RAM 1994-2015 Corporate 12 bolt-9.25" rear differential Comes with all necessary hardware Works great with oil level sight glass (Part Number: 46-00001) or deep reach magnetic fill plug (Part Number: 46-00002)