2015 Spicer/Dana DSP40, Truck Tractor, Tandem Cutoffs, Fits to: Kenworth T680, (Used) 2015 Kenworth T680, TANDEM CUTOFF- Make: Dana/ Spicer, Model: DSP40, Ratio: 3.36, Hub Bolts: 10, Brake Type: Air Wedge, 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 3.36, Serial# N/A, Casting# N/A 1XKYDP9X3FJ453696