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:
Removal
1. Remove the roller followers. For additional information, refer to Roller
Followers in this section.
2. Remove the spark plugs. For additional information, refer to Section .
3. Position the piston of the cylinder being serviced at the bottom of the
stro ...
Lifting
CAUTION: Do not allow the lift adapters to contact the steering
linkage, suspension arms,
stabilizer arms, or to compress the lower suspension arm stabilizer bar
insulator (5493).
Damage to the suspension, exhaust and steering linkage components may occur i ...
Manual Transmission
The TR3650 five-speed manual transmission features the following:
The fifth speed gear functions as an overdrive gear.
The forward gears are synchronized and helical cut.
The reverse gear operates through a constant-mesh, fully
synchronized system.
...
