Transmission Description

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.





4R70W Automatic Transmission