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:
Installation
1. Position the side rail and install the bolts.
2. NOTE: Tighten the bottom bolt first.
Connect the mounting bracket and install the bolts.
3. NOTE: Line up the marks in the number four bow.
Tighten the bolt.
4. Connect the number two and number three ...
Disassembly
1. CAUTION: Do not place the cylinder head flat on the bench; the
valves will bend.
CAUTION: Before disassembly begins, mark the valve position on the face of each
valve being removed. The valves must be re-installed into the same positions.
Install the spec ...
Inspection and Verification
WARNING: Batteries contain sulfuric acid. Avoid contact with
skin, eyes, or clothing.
Also, shield your eyes when working near batteries to protect against
possible splashing of the
acid solution. In case of acid contact with skin or eyes, flush
...
