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CLUTCHES-DRIVING DESCRIPTION Three hydraulically applied input clutches are used to • Input shaft. • Input hub. • Clutch retainer. • Underdrive piston. • Overdrive/reverse piston. • Overdrive hub. • Underdrive hub. OPERATION The three input clutches are responsible for driving different components of the planetary geartrain. NOTE: (Refer to 21 - TRANSMISSION/AUTOMATIC - 42RLE - DIAGNOSIS AND TESTING) for a collective view UNDERDRIVE CLUTCH The underdrive clutch is hydraulically applied in first, second, and third (direct) gears by pressurized fluid against the OVERDRIVE CLUTCH The overdrive clutch is hydraulically applied in third (direct) and overdrive gears by pressurized fluid against the REVERSE CLUTCH The reverse clutch is hydraulically applied in reverse gear only by pressurized fluid against the overdrive/reverse 21 - 758 AUTOMATIC TRANSMISSION 42RLE - SERVICE INFORMATION LX |