I believe this is a 1960's 10 spline BW T 10 4 speed that I bought with a 65 / 66 Ford Mustang factory shifter. It has the original Fomoco tag with HEK-M on it. This was rebuilt by a previous owner & on inspection all gears & syncro rings appear to be in good condition. These transmissions were used by Ford, GM, Mopar & AMC. Driveshaft yoke is included. Please note: Ford shifter that is pictured is available on another one of my listings, see "Sellers List". $650.00 obo