(USED) 2013 Freightliner Cascadia 125 - TANDEM CUTOFF - Make: Eaton. Model: DST40. Ratio: 3:36. Hub Bolts: 10. Serial Number: HN03672300. 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.