1976 Meritor/Rockwell R170, Tank Truck , Rear Rears (Tandem Rear or Single), Fits to: Ford 8000, (Used) 1976 Ford 8000, COMPLETE DIFFERENTIAL GEARS ONLY- Part Number: D5HA4A297CEA, Serial Number: WD75003839, Make: Rockwell International, Model: R170, Ratio: 5.86, Capacity: 23,000 Lbs, For more information about this item, give us call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Ratio 5.86, Serial# WD75003839, Casting# WD75003839 D80DVB11864