Tools Required

1. Remove the extension housing seal (125) using J 6125-1B and J 23129 .



2. Remove the extension housing bolts (127).
3. Remove the extension housing (119) and the extension housing gasket (126).
4. Inspect the extension housing for cracks and porosity.

Tools Required

1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Place a reference mark on the pinion flange yoke of the rear propeller shaft and the differential pinion flange to ensure correct rear propeller shaft installation. Refer Propeller Shaft Replacement in Propeller Shaft.
3. Remove the following components from the vehicle:

•	Four bolts

•

Four nuts

•	The propeller shaft

4. Drain the transmission fluid. Refer to Transmission Fluid Pan Removal .
5. Remove the transmission fluid pan and the transmission fluid pan gasket.
6. Drain the transmission fluid. Refer to Transmission Fluid Pan Removal .

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

7. Install the transmission fluid pan and a new gasket onto the transmission in order to provide support for the transmission assembly.

Use 12 transmission fluid pan bolts in order to secure the transmission fluid pan.

Tighten
Tighten the transmission fluid pan bolts to 13 N·m (115 lb in).




8. Disconnect the speedometer cable (2) from the speedometer driven gear case.
9. Remove the following components from the transmission:

•	The speedometer guide bracket bolt (1)

•	The speedometer guide bracket

10. Remove the speedometer driven gear case from the transmission extension housing.

Remove the two exhaust pipe bracket bolts and nuts.

11. Remove the exhaust pipe bracket from the extension housing and the catalytic converter.
12. Support the transmission with a suitable hydraulic jack.
13. Remove the 2 rear transmission mount bolts.
14. Remove the 4 rear transmission crossmember bolts.
15. Remove the rear transmission crossmember from the vehicle.



16. Remove the following components from the transmission case:

•	The 7 extension housing bolts (2)

•	The extension housing (1)

•	The extension housing gasket




17. Remove the following items from the extension housing (1):

•	The parking lock pawl (2)

•	The parking lock pawl shaft (3)

•	The parking lock pawl return spring (4)

18. Use the J 23129 and the J 6125-B in order to remove the extension housing seal from the extension housing.



19. Use the J 23062-14 and a J 8092 in order to remove the extension bearing from the extension housing (1).
20. Clean the extension housing and the transmission case mating surfaces.
21. Inspect the extension housing for cracks or other damage. Replace the extension housing, if necessary.