2006 Dana DS404, Truck Tractor, Axle Housings (Rear), Fits to: Kenworth W900, (Used) 2006 Kenworth W900, REAR DIFFERENTIAL HOUSING ONLY- REMANUFACTURED- Make: Spicer, Model: DS404, Ratio: 3.55, Capacity: 20,000 Lbs, 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# TBD, Hub Bolts 10, Brake Type Drum 1XKWDB9X26J147437