You are looking at a remanufactured FM139 Torque Converter pt#: F-61. Left over inventory from the attic of an old auto part store. Will fit all 1981-85 Ford C3 non-O.D. automatic transmission models with 140 CU / 2.3L 4 cylinder and 200 CU / 3.3L 6 cyl Mustang Capri Cougar Fairmont Zephyr Granada Thunderbird and 2wd Ranger trucks. Stock stall speed. 10” diameter, 21 spline, .825 pilot stepped to .750, flats on hub, 4 mounting studs, 8 boss front. I guarantee this to be a good converter.