1990 HUB PILOT NA, Truck Tractor, Hubs, Fits to: Western Star 4900, (Used) 1990 Western Star 4900, COMPLETE REAR DIFFERENTIAL HUBS- Side: Passenger Right Side, Make: Eaton, Model: DS461P, Ratio: 3.90, Capacity: 22,000 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# TBD, Material Steel, Hub Bolts 10 2WKPDCCH5LK928008