2015 Spicer/Dana DSP40/RSP40, Truck Tractor, Tandem Cutoffs, Fits to: Kenworth T680, (Used) 2015 Kenworth T680, TANDEM CUTOFF- Make: Spicer, Model: DSP40/RSP40, Ratio: 308, Hub Bolts: 10, Brake Type: DRUM, 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 308, Serial# U140806445, Casting# U140806445 1XKYDP9X7FJ432608