But the carmaker's Hydra-Matic division played a big part in manufacturing the M16 -- the most widely used infantry weapon in the history of the U.S. military. In 1948, after analyzing three war's ...

The Hydra-Matic 6T45 (production code MH7 ... more interior room and lower powertrain height. Three planetary gearsets are used with three stationary clutches and two rotating clutches, which ...

The Hydra-Matic 6T30 (production code MH9 ... Sixth gear, however, is an overdrive ratio, which keeps the engine revolutions lower for highway cruising, reducing engine friction losses and ...