Major Components

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

This transmission has the following major components:

Transmission case with integral torque converter housing
Torque converter
Fluid pump
Three drive clutches:
- Forward (1, 2, 3, 4) clutch
- Direct (3, 5, R) clutch
- Overdrive (4, 5, 6) clutch
Three brake clutches:
- Intermediate (2, 6) clutch
- Low/reverse (1, R) clutch
- Low/One-Way Clutch (OWC)
Two planetary gearsets:
- Front single planetary gearset (1 sun gear, 1 carrier, 1 ring gear)
- Rear ravigneaux planetary gearset (2 sun gears, 1 carrier with 2 sets of pinion gears and 1 ring gear)
Main control:
- Upper valve body
- Lower valve body
- Five shift solenoids, Line Pressure Control (LPC) solenoid and Torque Converter Clutch (TCC) solenoid

All gear shifts from 1st to 6th or from 6th to 1st are power-on overlapping shifts. That is, during the shift, one of the clutches must continue to transmit the drive at lower main pressure until the other clutch is able to accept the input torque.

The shift elements, clutches or brakes are engaged hydraulically. The transmission fluid pressure builds up between the cylinder and the piston, pressing the clutches together.

The purpose of the shift elements is to carry out in-load shifts with no interruption to traction.

Multi-plate clutches; forward, direct and overdrive, supply power from the engine to the planetary geartrain. Multi-disc brakes, intermediate and low/reverse hold components of the the planetary geartrain to the transmission housing to achieve a torque reaction effect.