2006 Spicer/Dana DSP40, Truck Tractor, Complete Axle-Front Rears, Fits to: Kenworth T800, (Used) 2006 Kenworth T800, COMPLETE FRONT REAR TANDEM- Part Number: 514522, Serial Number: HN04445572, Make: Spicer, Model: DSP40, Ratio: 3.36, Capacity: 20,000 lbs, 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 3.36, Serial# HN04445572, Casting# HN04445572 1XKDDB9X06J134340