2012 Meritor/Rockwell Other, Truck Tractor, Axle Housings (Rear), Fits to: Peterbilt 384, (Used) 2012 Peterbilt 384, COMPLETE REAR DIFFERENTIAL HOUSING ONLY- Part Number: C05-210201G3E10321, Serial Number: FOR01559793, Make: Meritor/Rockwell, Model: RD20145NCN5211 321, Ratio: 3.21, Capacity: 19,000 Lbs, Hub Bolts: 10, Brake Type: Drum, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921, Serial# FOR01559793, Casting# FOR01559793, Hub Bolts 10 1XPVDP9X6CD165985