2003 Meritor/Rockwell RP23164, Truck Delivery, Tandem Cutoffs, Fits to: Western Star 4900 FA, (Used) 2003 Western Star 4900 FA 46K REARS, TANDEM CUTTOFF- 46000 Lbs Make: Meritor/Rockwell, Model: RP23164NFNN4, Serial Number: AVA03024361, Part Number: 33063N3536A4.56, Ratio: 4.56, 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, Ratio 4.56, Serial# AVA03024361, Hub Bolts 10 5KKMAEAV73PL86609