(Used) 2007 Kenworth T800, FRONT DIFFERENTIAL GEARS ONLY- Part Number: 511329, Make: Spicer, Model: DSP40, Ratio: 3.55, Capacity: 19,000 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