(Used) 2002 Western Star 4900, COMPLETE FRONT AXLE- Make: Spicer, Model: 20F4, Serial Number: HU00153221, Part Number: 317009, Custom Number: 37002-3528, Capacity: 18,740 lbs, Hub Bolts: 10, Brake Type: Disk, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921