| 摘要 |
Methods and systems for improving the operation of transmissions for automotive vehicles increase the main line fluid pressure of a "factory installed" transmission to permit shifting of gears at proper time intervals without undesireable side effects including late or delayed shifts. The hydraulic circuitry of a "factory installed" automotive transmission is also modified to increase the accumulator range to improve the quality of a "1-2" shift, and to extend the useful operating life of the transmission. A seal assembly is provided for reducing leakage of transmission fluid, and additional modifications to the hydraulic circuitry of the automotive transmission provide a smooth, quick and positive forward clutch apply circuit, and increase the servo-apply pressure to the intermediate and overdrive servos to increase the holding capacity of the second and fourth bands and to adjust the field of the shift.
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