(Used) 2015 Freightliner Cascadia 125, TANDEM CUTOFF- Make: Detroit Axle Alliance, Model: RT40-4N, Ratio: 3.23, Hub Bolts: 10, Brake Type: Drum Brakes, Serial Number: 771AAC-A125331H, Part Number: C11-00042-50L For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921