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:
Brake System (Diagnosis and Testing)
Refer to Wiring Diagrams Cell 60, Instrument Cluster for schematic and
connector information.
Refer to Wiring Diagrams Cell 97, Daytime Running Lamps for schematic and
connector information.
Special Tool(s)
73 Digital Multimeter
105-R0051 or Equiva ...
On-board Diagnostics (OBD-II)
Your vehicle is equipped with a computer that monitors the engine’s
emission control system. This system is commonly known as the
on-board diagnostics system (OBD-II). The OBD-II system protects
the environment by ensuring that your vehicle continues to meet ...
Extension Housing Seal and Gasket
Special Tool(s)
Slide Hammer
100-001 (T50T-100-A)
Installer, Transmission
Extension Housing Fluid Seal
308-002 (T61L-7657-A)
Remover, Transmission Fluid
Seal
307-048 (T74P-77248-A)
Removal
1. Drain the transmiss ...
