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May 16, 2014 · Combining a Fluid-Drive-style fluid coupling (not yet a torque converter) to the AST almost seemed a no-brainer after working out the bugs with the latter, and indeed, Thompson’s team followed the project through until they had their fully automatic transmission, the Hydra-Matic, which GM’s Detroit Transmission Division began to produce in May 1939 and then to ship to Oldsmobile that ...
- Daniel Strohl
Hydramatic. A Hydra-Matic Drive transmission, produced between 1939 and 1956, on display at the Ypsilanti Automotive Heritage Museum. 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 ...
Mar 7, 2023 · When Hydra-Matic was new. I believe that Oldsmobile first offered the Hydramatic as an option in 1940. The first Oldsmobile I saw with Hydramatic was a 1941 model. The Cadillac offered the Hydramatic before WW Ii. Hydramatic was an option beginning in 1948 on Pontiacs. That year, 85% of the 8 cylinder Pontiacs sold were equipped with Hydramatic ...
May 29, 2010 · Wow, what a great discussion of this great Automatic transmission. I had 3 cars with the Hydra-Matic, a 1950 Oldsmobile, a 1955 Chevrolet with a 394 Cu. In. Olds engine & another 1955 Chevrolet with a 427 Chevrolet Engine. I was totally fasinated with the Hydra-Matic! I used to study the Hydra-Matic’s power paths shown in the motor’s manual.
Jun 23, 2021 · In October of 1939 the full Hydra-Matic was introduced as a $57 option on the 1940 Oldsmobile, and Cadillac followed in 1941. Versions of the Hydra-Matic saw action in U.S. fighting vehicles in World War II, including the M5 Stuart and M24 Chafee tanks.
Apr 6, 2021 · The original Hydra-Matic worked very well, and with such reliability that this 77-year-old example—in a 1941 Olds 98 that had sat abandoned in a Texas field for decades—held together for 607 ...
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Jan 30, 2019 · 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 wizard Earl Thompson and crew, the feature was adopted by Oldsmobile in 1940, Cadillac in 1941, and Pontiac in ...
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