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- the 'synchronizer' - a device that made a manual transmission's gear teeth mesh together with ease for smooth shifting, making synchromesh transmissions broadly available; Morse Chain brought out its first roller chain; and BorgWarner's self-contained overdrive transmission was introduced, with Chrysler and 11 other automakers purchasing the transmissions. BorgWarner Automotive Service Parts Division was also founded in the 1930s, and in 1936, the company commissioned a sterling silver trophy for the Indianapolis 500

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