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:
2-3 Accumulator
Removal
1. Remove the main control valve body. For additional information, refer to
Main Control Valve
Body in this section.
2. Remove the 2-3 accumulator piston retainer.
3. Remove the accumulator piston and spring.
Installation
1. Install the 2-3 accum ...
Inspection and Verification
1. Verify the customer concern is with the evaporative emission (EVAP)
system.
2. Visually inspect for the following obvious signs of mechanical damage.
Visual Inspection Chart
Mechanical
Fuel filler cap
EVAP test port
...
Driveshaft (Description and Operation)
NOTE: All driveshaft assemblies are balanced. If undercoating the
vehicle, protect the driveshaft to
prevent overspray of any undercoating material.
The driveshaft has the following features:
A tubular shaft used to transfer engine torque from the ...
