Transmission Description
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.
