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A Fluid Drive Dodge with Gyromatic was far less expensive than a Hydramatic-equipped Pontiac, and had the effect of making city taxi-driving far easier. In 1950, a Dodge Coronet, which had Fluid Drive standard, offered Gyromatic for $94.60 ($956.22 in 2017 dollars), while Hydramatic was a $158.50 option ($1,602.12) on Pontiacs.
The other disadvantage of Roto HydraMatic was the extreme oil pressures in the small 8" fluid coupling, which caused transmission leaks. All HydraMatic transmissions suffer some shift quality with today's ATF fluid. The original "Type A" fluid that these transmissions take is available only at O'Reilly Auto Parts.
Heavy-duty rear wheel drive. 1971–1994 3L80HD (heavy duty version of TH400) Light-duty rear wheel drive. 1969–1998 TH180/TH180C/3L30 — European/Asian model. Used/manufactured by Holden as the Trimatic. Longitudinal front wheel drive. 1966–1978 TH425 — 3-speed; 1979–1981 TH325 — 3-speed; 1982–1985 TH325-4L — 4-speed; Transverse ...
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.
The 4T80-E is a hydramatic transmission and was developed for use with V8 front-wheel-drive cars, and at the time exclusively the Cadillac Northstar engine. [3] It was designed with extreme power handling capabilities at the time. The 4T80-E debuted in the Cadillac Allanté in 1993 along with the Northstar Double Overhead Camshaft (DOHC) V8.
In Drive at full throttle, it would upshift from low gear to high gear at 60–65 mph (97–105 km/h). Under light throttle, depending on the final drive ratio, it might upshift at 10-15 mph. From 1964-1967, Buick and Oldsmobile versions of this transmission used a torque converter with a variable-pitch stator called Switch-Pitch (by Buick) or ...
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For the 1988 model year, the Pontiac Division of GM utilized a THM 125C modified to accommodate a full-time All-Wheel-Drive planetary gear transfer case and output housing to send 40% of the output torque to the rear wheels in the 3.1 liter powered 6000STE. While a similar design was used for the later 4T65E, the three speed design was utilized ...