Muncie 4-Speed: The Complete History - Chevy DIY
BorgWarner was a company founded in 1928 from the merger of Borg and Beck (founded in 1904) and Warner Gear (founded in 1901). They designed a 3-speed transmission, the T85, which was originally used in the 1935 Chrysler Airflow. It was used right up to 1971 in the Ford Pickup F100 with an overdrive.