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:
Resistor
Removal
1. Disconnect the connector.
2. Remove the screws.
3. Remove the resistor.
Installation
1. To install, reverse the removal procedure. ...
Crankshaft Runout
Special Tool(s)
Dial Indicator Gauge with
Holding Fixture
100-002 (TOOL-4201-C) or
equivalent
1. NOTE: Crankshaft main bearing journals must be within
specifications before checking runout.
Use the Dial Indicator Gauge with Holding Fixtur ...
Starter Motor - 3.8L
Removal
WARNING: When servicing starter motor (11002) or carrying out other
underhood work in
the vicinity of the starter motor, be aware that the heavy gauge battery
input lead at the starter
solenoid (11390) is "electrically hot" at all times. A prote ...
