(Used) 2012 Kenworth T800, COMPLETE REAR DIFFERENTIAL HOUSING ONLY- Part Number: 511330, Serial Number: HN03700834, Custom Number: C05-542012221401037, Make: Spicer/Dana, Model: RSP40, Ratio: 3.70, Capacity: 20,000 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