Ford Mustang Service Manual: Intermediate 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
Assembly
Disassembly
1. Remove the No. 1 selective pump support thrust washer.
2. Remove the front pump support.
1. Remove the bolts.
2. Remove the front pump support.
3. Remove the seal rings.
4. R ...
Reverse Clutch
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 ...
Road Test
Road Test
NOTE: It may be necessary to have the customer ride along or drive the
vehicle to point out the
concern. During the road test, take into consideration the customer's driving
habits and the driving
conditions. The customer's concern just may be an a ...
Transmission (REMOVAL)
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 transm ...