2020 Detroit DA-RT-40.0-4S, Truck Tractor, Rear Rears (Tandem Rear or Single), Fits to: Freightliner Cascadia 126, (Used) 2020 Freightliner Cascadia 126, COMPLETE REAR DIFFERENTIAL GEARS ONLY- Part Number: A775350 1230, Serial Number: DDC19FZ 462653, Make: Detroit, Model: DART4004S, Capacity: 20,000 Lbs, Ratio: 3.08, Hub Bolts: 10, Brake Type: Air 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 3.08, Serial# DDC19FZ 462653, Casting# DDC19FZ 462653 1FUJHHDR4LLMH8613