2015 Meritor/Rockwell Other, Truck Tractor, Rear Rears (Tandem Rear or Single), Fits to: International PROSTAR, (Used) 2015 International Prostar, COMPLETE REAR DIFFERENTIAL GEARS ONLY- Make: Meritor/Rockwell, Model: MR2014X4NFRNN531 342, Ratio: 3.42, Serial Number: FOR02780712, Part Number: A6664B83, Hub Bolts: 10, Brake Type: Disk, Capacity: 20,000Lbs, 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# FOR02780712, Casting# FOR02780712 1HSDJAPR6FH569302