2017 HUB PILOT NA, Truck Tractor, Hubs, Fits to: Peterbilt 579, (Used) 2017 Peterbilt 579, REAR DIFFERENTIAL HUBS- Side: Passenger Right Side, Make: Spicer, Model: RSP40, Ratio: 3.36, 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, Serial# TBD, Material Steel, Hub Bolts 10 1XPBDP9X2HD420738