Ford Mustang Service Manual: Countershaft

Manual Transmission

The T56 six-speed manual transmission features the following:

  • six forward speeds and one reverse speed.
  • forward gears are synchronized and helical cut.
  • a reverse gear operates through a constant-mesh, fully synchronized system.
  • a shift interlock system prevents the engagement of more than one gear.
  • a countershaft with two sections, the countershaft cluster and the countershaft extension. The countershaft cluster is serviced as an assembly, the countershaft extension components are serviced.
  • two tapered roller bearings on the output shaft.
  • two tapered roller bearings on the countershaft cluster.
  • a tapered roller bearing on the input shaft.
  • a tapered roller bearing on the countershaft extension.
  • countershaft cluster endplay controlled by shims located in the transmission adapter plate.
  • countershaft extension endplay controlled by shims located in the extension housing.
  • input/output shaft endplay is controlled by shims located in the transmission adapter plate.
  • removable wear pads on the shift forks.
  • an aluminum main case, extension housing, adapter plate and clutch housing.

Transmission Identification

The transmission identification tag is located under the lower bolt that retains the extension housing to the main case.

The six speed (T56) transmission is available for the Mustang 4.6L (4V).

Transmission Identification

 


 


Transmission Draining and Filling


    Assembly
    Disassembly   1. CAUTION: Hand tighten the special tool to prevent gear damage. CAUTION: Support the output shaft while using the press to prevent damage to the shaft or gears. Using the spec ...

    Synchronizers
    Manual Transmission The T56 six-speed manual transmission features the following: six forward speeds and one reverse speed. forward gears are synchronized and helical cut. a reverse gear operates ...

    Other materials:

    Engine and Radiator Flushing
    Engine Cooling (Description and Operation) CAUTION: Vehicle cooling systems are filled with Motorcraft Premium Gold Engine Coolant VC-7-A (in Oregon VC-7-B) or equivalent meeting Ford specification WSS-M97B51-A1 (yellow color). Always fill the cooling system ...

    Gear Howl and Whine
    Driveline System Special Tool(s) Clamp Plate 205-320 (T92L-4851-C) Clutch Housing Alignment Adapter 308-021 (T75L-4201-A) Companion Flange Holding Tool 205-126 (T78P-4851-A) Companion Flange Runout Gau ...

    Installation
    Removal WARNING: Do not smoke, carry lighted tobacco or an open flame of any type when working on or near any fuel-related components. Highly flammable mixtures are always present and may be ignited, possibly resulting in personal injury. WARNING: Fuel suppl ...