Ford Mustang Service Manual: Planetary Gear Support Assembly and Planetary One-Way Clutch

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


    Assembly
    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 crocus cloth. Install a new clutch ...

    Reverse Sun Gear
    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:

    Assembly
    Disassembly 1. CAUTION: Do not place the cylinder head flat on the bench; the valves will bend. CAUTION: Before disassembly begins, mark the valve position on the face of each valve being removed. The valves must be re-installed into the same positions. Inst ...

    Crankshaft Rear Oil Seal
    Engine       A modular engine is built around four modules: the intake module the cylinder head module (RH) the cylinder head module (LH) the lower engine module While not all repairs can take advantage of the modular conc ...

    Engine Front Cover
    Engine Component View Cylinder Heads and Valve Train Components   Engine Front Cover Components   Engine Components   Cylinder Block and Lower End Components   Engine (DIAGNOSIS AND TESTING) Refer to Section for basic mecha ...