Ford Mustang Service Manual: Special Testing Procedures

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

Identification Tags


    Pinpoint Tests - OSC Equipped Vehicles
    Transmission Description (Description and Operation) The 4R70W has the following features: Wide ratio gears Four speeds Rear wheel drive Automatic Electronic shift Torque conver ...

    Leakage Inspection
    Transmission Description (Description and Operation) The 4R70W has the following features: Wide ratio gears Four speeds Rear wheel drive Automatic Electronic shift Torque conver ...

    Other materials:

    Disassembly
    Disassembly 1. Inspect the clutch cylinder thrust surfaces, piston bore and clutch plate serrations for scores or burrs. Minor scores or burrs may be removed with a crocus cloth. Install a new clutch cylinder if badly scored or damaged. 2. Check fluid passa ...

    Motor - Window Regulator
    Glass, Frames and Mechanisms (Description and Operation) Component Location   Windshield Glass The windshield exterior mouldings are installed with the windshield glass. The windshield exterior mouldings cannot be replaced without removal of the w ...

    Front Bumper Cover
    Front Bumper Cover Removal and Installation NOTE: Mustang shown, GT and Cobra similar. 1. Remove the pin-type retainers and the radiator upper sight shield. 2. Remove the two pin-type retainers (one each side). 3. Remove the four front bumper cover nuts (t ...