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Hydramatic (also known as Hydra-Matic) is an automatic transmission developed by both General Motors ' Cadillac and Oldsmobile divisions. Introduced in 1939 for the 1940 model year vehicles, the Hydramatic was the first mass-produced fully-automatic transmission developed for passenger automobile use.
May 16, 2014 · Automatic transmissions have become more than just ubiquitous in recent decades – they’ve become all but the only transmission available in newer cars. But it took decades of development and a number of missteps and half-steps before the first mass-produced fully automatic transmission appeared – Oldsmobile’s Hydra-Matic, which…
- Daniel Strohl
GM Roto Hydramatic transmission. Roto Hydramatic (sometimes spelled Roto Hydra-Matic or Roto-Hydramatic) was an automatic transmission built by General Motors and used in some Oldsmobile, Pontiac and Holden models between 1961 and 1965. It was based on the earlier, four-speed Hydramatic, but was more compact, providing only three forward speeds ...
Jun 23, 2021 · As the first automatic that was widely available to the public, Hydra-Matic caught the Kleenex effect and for a time, became a popular generic name for any automatic gearbox. And indeed, GM made the Hydra-Matic transmission available to a number of automakers, including Hudson, Nash, Lincoln, Kaiser-Frazer, Willys, and even Rolls-Royce.
May 29, 2010 · Willow Run was converted to Hydra-Matic production by mid-September, and GM bought the plant outright in November for $26 million. While Willow Run was being retooled, Hydra-Matic users briefly had to substitute other transmissions — Dynaflow for Oldsmobile and Cadillac, Powerglide for Pontiac, and Borg-Warner for most non-GM customers.
Jan 18, 2022 · The Hydra-Matic of 1940, the American auto industry’s first fully automatic transmission, is a good example. (See our feature on Hydra-Matic here. ) For the GM transmission engineering staff led by Earl A. Thompson, Hydra-Matic was really two important technical advances in one: a hydraulically governed four-speed automatic gearbox, coupled to a two-element fluid (aka hydrodynamic) coupling.
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Jan 30, 2019 · The automatic transmission is nearly universal today, but the American car-buying public was wary at first. Here’s Oldsmobile’s pitch for the 1942 Hydra-Matic. General Motors got a sizable jump on the industry in 1940 with the introduction of Hydra-Matic Drive, the first practical fully automatic transmission. Developed by GM engineering ...
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