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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
Jan 18, 2022 · It was decided to roll out the gearbox unit to the public first, so in June of 1937 came the introduction of the Oldsmobile Automatic Safety Transmission, or AST. As shown in the cutaway schematic above, the AST was essentially the gearbox portion of a Hydra-Matic, with four forward speeds via planetary gearsets and hydraulic servos operating a set of bands and clutches to perform the ...
Sep 25, 2020 · Oldsmobile introduced more than 20 industry-first technologies, including the first production fully automatic transmission. It's called the Hydra Matic and it was introduced for the 1940 model year.
1940 – Oldsmobile introduces the Hydra-Matic, the first production fully automatic transmission. 1948 – Oldsmobile, along with Buick and Cadillac begin offering one piece compound curved windshields. Prior to this, windshields were split in the middle. 1949 – Oldsmobile introduces the first high-compression, OHV V8 engine the Rocket. [25]
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.
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The first real automatic transmission, referring to the first transmission to not use any kind of clutch at all, was the famous Hydra-Matic four-speed automatic. The Hydra-Matic transmission was invented in 1939 by General Motors, and was first included as an option in several models under their Oldsmobile brand.
