Hydramatic
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Hydramatic is an automatic transmission developed by General Motors Corporation's Oldsmobile Division. The Hydramatic was the first mass-produced fully automatic transmission developed for passenger a
A Hydra-Matic Drive transmission, produced between 1939 and 1956, on display at the Ypsilanti Automotive Heritage Museum
A Hydra-Matic 315 transmission, produced between 1956 and 1964
A Hydra-Matic 240 transmission, produced between 1961 and 1964
A Hydra-Matic 375 transmission, produced between 1961 and 1964
Ultramatic
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Ultramatic was the trademarked name of the Packard Motor Car Company's automatic transmission introduced in 1949 and produced until 1956, at Packard's Detroit, Michigan, East Grand Boulevard factory.
The column-mounted push button selector box for the Touchbutton Ultramatic in a 1956 Caribbean.