Ford Mustang (1999-2004) Service Manual: Geartrain

Power is transmitted from the torque converter to the Ravigneaux geartrain components through the input shaft and forward clutch cylinder.

  • The geartrain contains a Ravigneaux planetary set connected by dual pinion gears.
  • By holding or driving certain components of the gearset, four forward ratios and one reverse ratio are obtained and transmitted to the output shaft. The ratios are as follows:

Geartrain

  • Components of the geartrain can be held by bands or clutches and driven by clutches only.

The 4R70W uses:

  • two bands.
  • two one-way clutches (one roller, one mechanical diode).
  • four friction clutches.

Planetary Gearset

The planetary gearset in the transmission is a Ravigneaux-type set consisting of the following components:

  • forward clutch sun gear
  • reverse clutch sun gear
  • a pinion carrier
  • long and short pinions
  • output ring gear

Components are held or driven to produce forward and reverse gear ratios.

Input Shaft

The forward clutch cylinder and shaft transfers speed and torque from the converter turbine to the geartrain. This shaft is splined to the turbine on one end and to the forward clutch sun gear and stub shaft on the other end.

Stub Shaft

The stub shaft transfers power from the input shaft to the planet carrier (through the direct clutch) during third and fourth gear operation.

Output Shaft

The output shaft provides torque to the driveshaft and rear axle assembly. It is driven by the ring gear of the planetary gearset.

    Torque Converter (Description and Operation)
    The torque converter transmits and multiplies torque. The torque converter is a four-element device: impeller assembly turbine assembly reactor assembly clutch and damper assembly ...

    Apply Components
    There are eight apply components used to drive or hold the planetary gearset components. Band-Overdrive   1. The overdrive band holds the reverse clutch drum stationary in fourth gear an ...

    Other materials:

    Seats (Description and Operation)
      Seats - Front Power The front power seat features: a six-way seat regulator control switch (14A701) located on the front of the seat. a seat track (61705) mounted under the seat. a seat regulator motor (14547) and gear housing mounted on ...

    Fuel Tank And Lines (Description and Operation)
    WARNING: Do not smoke, carry lighted tobacco or an open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited, possibly resulting in personal injury. The vehicle utilizes a retur ...

    Knock
    Knock, which can occur on all driving phases, has several causes including damaged teeth or gearset. In most cases, one of the following conditions will occur: 1. A gear tooth damaged on the drive side is a common cause of the knock. This can usually be cor ...