2005 Meritor/Rockwell RT46164, Truck Delivery, Front Rears (Tandem Front), Fits to: Western Star 4900EX, (Used) 2005 Western Star 4900EX, COMPLETE FRONT DIFFERENTIAL GEARS ONLY- Part Number: 33063N3566G4.10, Serial Number: AVA04257434, Make: Meritor, Model: RT46-164, Ratio: 4.10, Capacity: 23,000 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, Ratio 4.10, Serial# AVA04257434, Casting# AVA04257434 5KKMABAV95PU85918