![1957-1964 Olds 371 / 394 with "Slim Jim" to Chevy Automatic Transmission (166 tooth externally balanced) OL303 - PATC - TransmissionCenter.net 1957-1964 Olds 371 / 394 with "Slim Jim" to Chevy Automatic Transmission (166 tooth externally balanced) OL303 - PATC - TransmissionCenter.net](https://transmissioncenter.net/wp-content/uploads/2019/04/Olds-371or-394-with-Slim-Jim-to-Chev-Automatic-Transmission-166-tooth-externally-balanced.jpg)
1957-1964 Olds 371 / 394 with "Slim Jim" to Chevy Automatic Transmission (166 tooth externally balanced) OL303 - PATC - TransmissionCenter.net
![1940 Oldsmobile Hydramatic Drive Classic Vintage Print Ad | Oldsmobile, Automatic transmission, Classic cars trucks 1940 Oldsmobile Hydramatic Drive Classic Vintage Print Ad | Oldsmobile, Automatic transmission, Classic cars trucks](https://i.pinimg.com/736x/ca/ef/c1/caefc1d99398b7f252539462cbdd3bc3.jpg)
1940 Oldsmobile Hydramatic Drive Classic Vintage Print Ad | Oldsmobile, Automatic transmission, Classic cars trucks
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Inside the 1940 GM Hydra-Matic, The First Modern Automatic Transmission - Mac's Motor City GarageMac's Motor City Garage
Basin Automatic Transmission - Since Cadillac and Oldsmobile introduced the HydraMatic in 1939, automatic transmissions have been widely available to drivers. Keep yours in good condition by following the manufacturer's recommended schedule
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1948 Oldsmobile touting the "Hydra-Matic Drive" automatic transmission. | Oldsmobile, Car ads, Vintage cars
![Hydra-Matic's Daddy: The 1937 Olds Automatic Safety Transmission - Mac's Motor City GarageMac's Motor City Garage Hydra-Matic's Daddy: The 1937 Olds Automatic Safety Transmission - Mac's Motor City GarageMac's Motor City Garage](https://i0.wp.com/www.macsmotorcitygarage.com/wp-content/uploads/2022/01/1938-Oldsmobile-Steps-Out-Ahead.png?resize=584%2C673&ssl=1)
Hydra-Matic's Daddy: The 1937 Olds Automatic Safety Transmission - Mac's Motor City GarageMac's Motor City Garage
![1939 Ad Oldsmobile Car Cylinder Automatic Transmission - ORIGINAL FTT9 – Period Paper Historic Art LLC 1939 Ad Oldsmobile Car Cylinder Automatic Transmission - ORIGINAL FTT9 – Period Paper Historic Art LLC](http://www.periodpaper.com/cdn/shop/products/FTT9_215_3ff07663-2385-45ee-a5bf-dc976728ecb0_1200x1200.jpg?v=1571709460)