2003 Spicer/Dana Other, Truck Delivery, Rear Rears (Tandem Rear or Single), Fits to: GMC C4500, (Used) 2003 Gmc C4500, COMPLETE DIFFERENTIAL GEARS ONLY- Make: Spicer/Dana, Model: 286-010-RB(GL4, Ratio: 4.88, Capacity: 11,000 Lbs, Hub Bolts: 8, 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, Ratio 4.88, Serial# TBD, Truck Year 2003 1GDE4E1173F505397