Geartrain

Power is transmitted from the torque converter to the Ravigneaux gear train components through the input shaft and forward clutch cylinder and shaft.
^ The gear train contains a compound planetary set connected by dual pinion gears.





^ By holding or driving certain members of the gear set, four forward ratios and one reverse ratio are obtained and transmitted to the output shaft. The ratios are as follows:
^ Members of the gear set are held or driven by a series of bands or clutches.
^ The transmission uses:
- two bands.
- two one-way roller clutches.
- four friction clutches.

PLANETARY GEAR SET
The planetary gear set in the transmission is a Ravigneaux-type set consisting of the following components:
^ primary sun gear
^ reverse clutch gear and shell.
^ a pinion carrier
^ long and short pinions
^ ring gear

Members are driven or held to produce four forward gear ratios plus one reverse ratio.

INPUT SHAFT
The forward clutch cylinder and shaft transfers speed and torque from the converter turbine to the gear train. This forward clutch cylinder and shaft is splined to the turbine shaft (7F35 1) on one end and to the forward sun gear and turbine shaft on the other end.

STUB SHAFT
The stub shaft transfers power from the turbine shaft to the planet carrier (through the direct clutch) during third and fourth gear operation.

OUTPUT SHAFT
The output shaft provides torque to the propeller shaft and rear axle assembly. It is driven by the ring gear of the planetary gear set.

FORWARD CLUTCH CYLINDER AND SHAFT
The forward clutch cylinder and shaft transfers speed and torque from the converter turbine to the gear train. This shaft is splined to the turbine on one end and to the forward clutch cylinder and stub shaft on the other end.