2013 Spicer/Dana DSP41, Truck Tractor, Rear Rears (Tandem Rear or Single), Fits to: Kenworth T660, (Used) 2013 Kenworth T660, REAR REAR- Make: Spicer, Model: DSP41, Ratio: 3.25, Hub Bolts: 10, Brake Type: Air Wedge, Serial Number: HNO3958428, Part Number: 511327, 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 3.25, Axle Spline Count Other, Serial# HNO3958428 1XKADP9X0DJ346880