2016 Detroit DA-RT-40.0-4, Truck Tractor, Rear Rears (Tandem Rear or Single), Fits to: Freightliner Cascadia 125, (Used) 2016 Freightliner Cascadia 125, COMPLETE REAR DIFFERENTIAL GEARS ONLY- Part Number: R6813510805, Serial Number: 771AAC-A176500T, Make: Detroit, Model: DA-RT-40.0-4, Ratio: 3.42, Capacity: 20,000 Lbs, 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 3.42, Serial# 771AAC-A176500T, Casting# 771AAC-A176500T 3AKJGLD60GSGY7215