In 1949, GM released a new Type "A" fluid specification. It is important to understand that every automatic transmission produced by any vehicle manufacturer (Oldsmobile, Cadillac, Buick, Chevrolet, Pontiac, GMC, Ford, Mercury, Lincoln, Chrysler, Dodge, Desoto, Packard, and Studebaker used GM Type "A" transmission fluids in their transmissions from 1949-1958. This fluid was first used in the fluid couplings of the following transmissions:ġ954 Mopar Type "A" ATF. The torque converter versions used motor oil rather than fluid drive fluid. There were three variations of the M6, one used the previous conventional fluid coupling, the other two used a torque converter. 1949-1953 Chrysler offered the Fluid Drive and a new hydraulically operated 4-speed gear-box called the M6. The Fluid Drive used the special Mopar Fluid Drive fluid in the fluid coupling and the M5 transmission used a very light S.A.E. was drawn into World War II in December 1941 and production was halted.ġ946-1948 After the war, Chrysler offered the Fluid Drive and a new hydraulically operated 4-speed gear-box called the M5. The M3 transmission was short lived as the U.S. The M3 Fluid Drive also used Mopar Fluid Drive fluid in the fluid coupling but used regular S.A.E. 80 - 160 gear oil.Ī revised Fluid Drive with a vacuum shifted 4-speed gearbox (the M3) was offered on Chrysler and Desoto models for the 19 model years. The transmission gearbox used regular S.A.E. This model was used from 1939 through 1941 on Chrysler and 1941 Dodge models. The fluid coupling was partially filled (80%) with a special Mopar Fluid Drive Fluid. The fluid coupling allowed the engine to stay running with the vehicle stopped and the transmission was still in gear. A different gear would affect the acceleration rate and top speed. Depressing the clutch pedal was not needed unless the driver desired to select a different transmission gear or reverse. The clutch pressure plate was connected to the engine through a sealed 2-element fluid coupling (A 1905 German Invention). This car had a three-speed manual transmission connected to a conventional clutch and clutch pedal system (Labeled Safety Clutch). In 1938, for the 1939 model year, Chrysler offered the “Fluid Drive” in the Custom Imperial. Many of these automatic transmissions use unique fluids that might not be shown on this page. Chrysler, like many automobile manufacturers, uses transmissions sourced from other suppliers or transmission manufacturers around the world these transmissions are not manufactured by Chrysler. If no license number is found, the fluid may not be Chrysler approved and the fluid cannot be guaranteed to meet Chrysler specifications. All licensed Chrysler fluids must have a license number on the container. Not all Chrysler fluids are licensed for reselling under another brand name. Chrysler licenses their ATF specifications to companies which manufacture the fluid and sell it under their own brand names. In 1966, Chrysler began releasing their own automatic transmission fluid specifications. Chrysler used General Motors (GM) automatic transmission fluid specifications from 1952 through 1966 and marketed them under the Mopar brand name. Other Mopar branded fluids for their Fluid Drive semi-automatic transmissions were available as early as 1938. Torco ATF LoVis and ATF HiVis will significantly reduce operating temperatures.Mopar branded automatic transmission fluids (ATF) have been available for use in Chrysler fully automatic transmissions since 1953. Torco ATFs are multifunctional fluids for automatic and power shift transmissions offering superior shear resistance, extreme gear protection and clean operation for extended component durability and clutch performance. Both fluids are formulated using 100% synthetic base oils and additive technologies designed to manage extreme loads, high operating temperatures and high speed conditions. LoVis ATF and HiVis ATF are specially engineered for severe operating conditions encountered in racing, high performance Street and off road use.
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