Ford Mustang (1999-2004) Service Manual: Transmission Description (Description and Operation)
The 4R70W has the following features:
- Wide ratio gears
- Four speeds
- Rear wheel drive
- Automatic
- Electronic shift
- Torque converter clutch control
- Line pressure controls
The transmission uses Ravigneaux-style double-pinion gearset with two bands, one one-way roller clutch, one mechanical diode and four friction clutches to produce four forward gears and Reverse.
4R70W Automatic Transmission

Automatic Transaxle/Transmission
General Specifications
a - MERCON V is not interchangeable at this time with the current MERCON
fluids. Check the
transmission fluid level indicator to determine the correct fluid and refer to
the ...
Identification Tags
All vehicles are equipped with a Vehicle Certification Label, located
on the driver side door lock post.
For correct transmission identification, refer to the code in the space
marked TR.
...
Other materials:
Torque Converter End Play Check
Special Tool(s)
Dial Indicator Gauge with
Holding Fixture
100-002 (TOOL-4201-C) or
equivalent
End Play Gauge, Torque
Converter
307-071 (T80L-7902-A) or
equivalent
1. Install the special tool into the torque converter pump ...
Reservoir
Removal
1. Remove the LF wheel and tire. Refer to Section.
2. Position the front portion of the LF inner splash shield aside.
3. WARNING: Windshield washer solution contains methanol, which is
poisonous.
Observe all cautions and warnings indicate ...
Assembly
1. Lubricate all components with the recommended transmission fluid when
reassembling.
2. Using the special tools, press the output shaft front bearing on the output
shaft.
3. Install the third gear bearing.
Apply petroleum jelly to the bearing.
4. I ...
