Ford Mustang (1999-2004) Service Manual: Extension Housing
Special Tool(s)
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Installer, Bearing Cup 204-039 (T77F-1217-B) |
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Adapter for 303-224 (Handle) 205-153 (T80T-4000-W) |
Disassembly and Assembly



1. Remove the bolt and the output shaft speed (OSS) sensor.

2. Remove the bolt and the reverse lockout solenoid.

3. Remove the bolts and the reverse idler shaft bracket.

4. Remove the reverse idler gear thrust washer.

5. Remove the reverse idler gear.

6. NOTE: If the countershaft extension bearing was installed new, install a new bearing cup.
Remove the reverse idler gear needle bearing and countershaft extension bearing cup.
- Inspect the needle bearing for wear or damage. Install a new bearing as necessary.
- Inspect the bearing cup for wear or damage. Install a new bearing and bearing cup as necessary.

7. Remove the reverse idler gear thrust washer and the reverse idler gear shaft.

8. Remove the countershaft extension bearing shim and the fluid funnel.

9. Remove the snap ring.

10. NOTE: If the mainshaft bearing was install new, install a new bearing cup.
Position the extension housing with the seal facing upward. Using a brass drift, remove the mainshaft bearing cup.

11. Remove and discard the extension housing seal.

12. WARNING: Make sure protective eye wear is in place.
Clean the housing with solvent and dry with compressed air. Clean and check the sealing surface for nicks or scratches. Inspect the housing for cracks.
- If the housing is cracked, install a new housing. If the sealing surface has nicks or scratches, use a soft stone or crocus cloth to remove.
13. Using the special tools, install the mainshaft bearing cup.

14. Using a suitable driver, install the extension housing seal.
- Install the seal with the drain hole at the six o'clock position.
15. To assemble, reverse the disassembly procedure.
Gearshift Rail and Fork
Disassembly and Assembly
1. Disassemble the first/second and third/fourth shift rail as follows:
Rotate the interlock plate until it is opposite of the shift links.
Slide off the third/fo ...
Transmission Case
Special Tool(s)
Handle
205-D055 (D81L-4000-A)
Installer, Bearing Cup
204-039 (T77F-1217-B)
Installer, Drive Pinion Bearing
Cup
205-054 (T71P-4616-A)
...
Other materials:
Electronic Vibration Analyzer (EVA)
The EVA is a hand-held electronic diagnostic tool which will assist in
locating the source of
unacceptable vibrations. The vibration sensor can be remotely mounted anywhere
in the vehicle for
testing purposes. The unit displays the three most common vibratio ...
Noise, Vibration and Harshness (NVH) (Diagnosis and Testing)
Special Tool(s)
ChassisEAR
107-R2102 or equivalent
Electronic Vibration Analyzer
100-F027 (014-00344) or
equivalent
EngineEAR
107-R2100 or equivalent
Ultrasonic Leak Detector
134-R0135 or equivalent
T ...
Disassembly
Initial disassembly
1. Remove the differential housing cover (4033) and drain the lubricant into
a suitable container.
2. Wipe the lubricant from the internal working parts and inspect the parts for
wear and damage.
3. Using the special tool, measure and n ...


