Fits 1970 to 1982 Ford, Lincoln and Mercury C4 automatic transmissions. Uses a 10.5 in. bolt pattern and accepts a 26 splined shaft and 1.375 in. crank pilot. The Tork Master is B&Ms lowest cost performance torque converter. The Tork Master is an excellent all around performance street converter. The best value priced street converters available. Tork Master converters come with a new precision pump Drive tube and all are pressure tested and fully balanced. The Tork Master torque converter is not recommended for big block or supercharged applications. Includes a new alloy steel pump Drive tube, new needle thrust bearing when factory equipped and a new thrust washer between turbine and cover when required.