2007 Spicer/Dana DS404, Truck Tractor, Front Rears (Tandem Front), Fits to: International 8600, (Used) 2007 International 8600, FRONT DIFFERENTIAL GEARS ONLY- Part Number: 3549514C91, Serial Number: MY00380020, Make: Spicer, Model: DS404, Ratio: 3.55, Capacity: 20,000 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 3.55, Serial# MY00380020, Casting# MY00380020 1HSHXSBR27J439654