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For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 CTS 🢒 Transmission/Transaxle 🢒 Manual Transmission - Tremec 6-Speed 🢒 Transmission Assemble

Transmission Assemble CTS and GTO

Shift Shaft Assemblies and Gear Clusters Installation

Tools Required

J 36850 Transjel® Lubricant Assembly Lube

  1. Lubricate all components as assembly progresses, using J 36850 .

    2. Object Number: 388448 Size: SH
  2. Install the input shaft in the adapter plate.

    3. Object Number: 388446 Size: SH
  3. Assemble the shift shaft to the mainshaft.
  4. Install the neutral return roll pin to the shift shaft.
  5. Install the mainshaft and the shift shaft assembly into the adapter plate.

    6. Object Number: 388442 Size: SH
  6. Install the countershaft assembly using the following sequence:
    7. 6.1. Lift up the mainshaft assembly enough in order to install the countershaft assembly.
    6.2. Install the countershaft assembly.
    6.3. Lift the mainshaft assembly enough in order to rotate the input shaft to engage the synchronizer keys with 4th gear blocking ring.

    Object Number: 388439 Size: SH
  7. Install the 5th/6th and the reverse shift shaft.

    8. Align the slots of the shift shaft levers with the interlock plate.

Transmission Case Installation

Tools Required

J 36850 Transjel® Lubricant


    Object Number: 38403 Size: SH

    Important: Lubricate all components as the assembly progresses. Use J 36850 or the equivalent.

  1. Apply sealant GM P/N 12345739, (Canadian P/N 10953472) or equivalent to the transmission case to adapter plate mating surface.

    2. Object Number: 1385070 Size: SH
  2. Do the following in order to install the transmission case and the offset lever:
    3. 2.1. Shift the transmission into NEUTRAL in order to keep the 3rd/4th shift shaft from engaging.
    2.2. Install the offset lever.
    2.3. Slide the transmission case onto the gear clusters and the shift rail components.

    Object Number: 350592 Size: SH
  3. Apply threadlock GM P/N 12346004, (Canadian P/N 10953480) or equivalent to the threads of the shift lever guide bolts.

    4. Object Number: 1386561 Size: SH

    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.

  4. Install the shift lever guide bolts and pull up on 5th/6th and reverse shift rail assembly. This will help align the slot of the shift interlock plate with the guide bolt hole.

    5. Tighten
    Tighten the bolts to 27 N·m (20 Ib ft).


    Object Number: 1385067 Size: SH
  5. Install the adapter plate to transmission case bolts.

    6. Tighten
    Tighten the bolts to 48 N·m (36 Ib ft).


    Object Number: 1385069 Size: SH
  6. Install the magnets into the transmission case.

    7. Object Number: 1385066 Size: SH
  7. Install the shift detent plug, spring and ball.

    8. Object Number: 388460 Size: SH
  8. Install the shift detent assembly.

    9. Tighten
    Tighten the detent assembly to 40 N·m (30 Ib ft).


    Object Number: 1385065 Size: SH
  9. Install the computer aided gear select solenoid.

    10. Tighten
    Tighten the solenoid to 40 N·m (30 Ib ft).

Countershaft Extension Installation

    Object Number: 388437 Size: SH
  1. Position the transmission in the horizontal position.
  2. Install the countershaft extension assembly and the 5th/6th shift fork. The splines of the countershaft extension must engage the splines of the countershaft.

    3. Object Number: 388434 Size: SH
  3. Install the 5th/6th shift fork retainer ring.

5th/6th Speed Driven Gear Installation

Tools Required

    • J 39441 5th/6th Driven Gear Installer
    • J 39441-10 5th Gear Installer Adapter

Object Number: 389848 Size: SH

Install the 5th/6th speed driven gear using the J 39441 and J 39441-10 . The smaller outside diameter (OD) of the gear faces down.

Reverse Shift Fork Installation

    Object Number: 388432 Size: SH
  1. Install the reverse shift fork, the synchronizer and the thrust washer.

    2. Object Number: 388431 Size: SH
  2. Install a new shift fork retainer ring.

    3. Object Number: 388430 Size: SH
  3. Install the reverse synchronizer retainer ring.

Reverse Speed Gear Installation

    Object Number: 38238 Size: SH
  1. Install the following parts in order:
    2. 1.1. The blocking ring
    1.2. The wave washer
    1.3. The wave washer so the concave side faces the blocking ring
    1.4. The caged needle bearing
    1.5. The reverse speed gear
    1.6. The thrust washer
    1.7. The retainer ring

    Object Number: 38233 Size: SH
  2. Install the following parts in order:
    3. 2.1. The spacer
    2.2. The roller bearing
    2.3. The spacer
    2.4. The roller bearing retainer ring

    Object Number: 1718918 Size: SH
  3. Install the following parts in order:
    4. • The snap ring
    • The speed sensor rotor
    • The snap ring

    Object Number: 1385064 Size: SH
  4. Install the shift shaft extension.
  5. Install the shift guide.
  6. Install NEW shift guide roll pins.

Extension Housing Assemble

Tools Required

J 39430 Transmission Holding Fixture


    Object Number: 38379 Size: SH
  1. Install the following parts in order:
    2. 1.1. The funnel
    1.2. The selective shims. Refer to the Countershaft Extension in Shimming Procedures .
    1.3. The countershaft extension bearing race

    Object Number: 105688 Size: SH
  2. Install the following parts in order:
    3. 2.1. The reverse idler shaft
    2.2. The roller bearing
    2.3. The reverse idler gear

    Object Number: 38712 Size: SH
  3. Apply GM P/N 12345382, (Canadian P/N 10953489) or the equivalent to the reverse idler shaft brackets bolt threads.

    4. Object Number: 38375 Size: SH

    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.

  4. Install the following parts in order:
    5. 4.1. The reverse idler shaft bracket.
    4.2. The reverse idler shaft bracket bolts.

    Tighten
    Tighten the bolts to 25 N·m (18 Ib ft).


    Object Number: 38416 Size: SH
  5. Apply sealant GM P/N 12345739, (Canadian P/N 10953472) or equivalent to the extension housing to the transmission case mating surface.

    6. Object Number: 38712 Size: SH
  6. Apply thread sealer GM P/N 12346004, (Canadian P/N 10953480) or equivalent to the top 2 extension housing bolts.

    7. Object Number: 1385059 Size: SH

    Important: Align the 5th/6th shift shaft to the extension housing bore in order to install the extension housing.

  7. Install the extension housing.
  8. Install the extension housing bolts.

    9. Tighten
    Tighten the bolts to 48 N·m (36 lb ft).


    Object Number: 1385063 Size: SH
  9. Install the propshaft connector.
  10. Install the propshaft connector nut.

    11. Tighten
    For the CTS only, tighten the nut to 136 N·m (100 lb ft).


    Object Number: 1385061 Size: SH
  11. Install the shifter cover plate.
  12. Install the shifter cover plate bolts.

    13. Tighten
    Tighten the bolts to 20 N·m (15 lb ft).

  13. Install the vent tube.

    14. Object Number: 1385057 Size: SH
  14. Remove the J 39430  (2).

    15. Object Number: 1385053 Size: SH
  15. Install the remaining 2 adapter plate bolts (1) and (2).

    16. Tighten
    Tighten the adapter plate bolts to 48 N·m (36 lb ft).

Transmission Assemble Corvette MM6 and MZ6

Shift Shaft Assemblies and Gear Clusters Installation

Tools Required

J 36850 Transjel® Lubricant Assembly Lube

  1. Lubricate all components as assembly progresses, using J 36850 .

    2. Object Number: 388448 Size: SH
  2. Install the input shaft in the adapter plate.

    3. Object Number: 388446 Size: SH
  3. Assemble the shift shaft to the mainshaft.
  4. Install the neutral return roll pin to the shift shaft.
  5. Install the mainshaft and the shift shaft assembly into the adapter plate.

    6. Object Number: 388442 Size: SH
  6. Install the countershaft assembly using the following sequence:
    7. 6.1. Lift up the mainshaft assembly enough in order to install the countershaft assembly.
    6.2. Install the countershaft assembly.
    6.3. Lift the mainshaft assembly enough in order to rotate the input shaft to engage the synchronizer keys with 4th gear blocking ring.

    Object Number: 388439 Size: SH
  7. Install the 5th/6th and the reverse shift shaft.

    8. Align the slots of the shift shaft levers with the interlock plate.

Reverse Lockout Assembly Assemble

    Object Number: 350562 Size: SH

    Caution: The reverse lockout assembly is under spring pressure. Exercise caution when removing the retainer ring, as bodily injury may result.

  1. Install the reverse lockout plunger (6).
  2. Install the reverse lockout outer spring (5).
  3. Install the reverse lockout collar (4).
  4. Compress the reverse lockout plunger and the collar (4) in a vise and Install the retainer ring (3).
  5. Install the reverse lockout inner spring (2).
  6. Install the reverse lockout components in the body (1).
  7. Install the retainer ring (7).
  8. Install the O-ring to body (8).

Transmission Case Installation

Tools Required

    • J 41099 Skip Shift Sensor Remover/Installer
    • J 36850 Transjel® Lubricant

    Object Number: 38403 Size: SH

    Important: Lubricate all components as the assembly progresses. Use J 36850 or the equivalent.

  1. Apply sealant GM P/N United States 12345739, GM P/N Canada 10953472 or equivalent to the transmission case to adapter plate mating surface.

    2. Object Number: 350591 Size: SH
  2. Install the ball detent and the spring in the front offset lever.

    3. Object Number: 388438 Size: SH
  3. Do the following in order to install the transmission case and the offset lever:
    4. 3.1. Shift the transmission into NEUTRAL in order to keep the 3rd/4th shift shaft from engaging.
    3.2. Install the offset lever.
    3.3. Compress the front offset lever together while sliding it onto the shift shaft. This will prevent the spring release of the inner components.
    3.4. Slide the transmission case onto the gear clusters and the shift rail components.

    Object Number: 350592 Size: SH
  4. Apply threadlock GM P/N United States 12346004, GM P/N Canada 10953480 or equivalent to the threads of the shift lever guide bolts.

    5. Object Number: 105691 Size: SH

    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.

  5. Install the shift lever guide bolts and pull up on 5th/6th and reverse shift rail assembly. This will help align the slot of the shift interlock plate with the guide bolt hole.

    6. Tighten
    Tighten the bolts to 27 N·m (20 Ib ft).


    Object Number: 105692 Size: SH
  6. Install the adapter plate to transmission case bolts.

    7. Tighten
    Tighten the bolts to 48 N·m (36 Ib ft).


    Object Number: 350556 Size: SH
  7. Install the magnets into the transmission case.

    8. Object Number: 350558 Size: SH
  8. Install the offset lever roll pin.

    9. Object Number: 388460 Size: SH
  9. Install the shift detent assembly.

    10. Tighten
    Tighten the detent assembly to 40 N·m (30 Ib ft).


    Object Number: 38411 Size: SH
  10. Apply sealant GM P/N United States 12345739, GM P/N Canada 10953472 or the equivalent to the mating surface of the cover plate.

    11. Object Number: 1538826 Size: SH
  11. Install the transmission case cover and the case cover bolts.

    12. Tighten
    Tighten the bolts to 20 N·m (15 Ib ft).


    Object Number: 1538825 Size: SH
  12. Install the reverse lockout body and bolt in the cover plate.

    13. Tighten
    Tighten the bolts to 18 N·m (13 Ib ft).


    Object Number: 71530 Size: SH
  13. Install the reverse lockout solenoid to reverse lockout body assembly, using the J 41099 .

    14. Tighten
    Tighten the solenoid to 40 N·m (30 Ib ft).


    Object Number: 350553 Size: SH
  14. Install the computer aided gear select solenoid.

    15. Tighten
    Tighten the solenoid to 40 N·m (30 Ib ft).

Countershaft Extension Installation

    Object Number: 388437 Size: SH
  1. Position the transmission in the horizontal position.
  2. Install the countershaft extension assembly and the 5th/6th shift fork. The splines of the countershaft extension must engage the splines of the countershaft.

    3. Object Number: 388434 Size: SH
  3. Install the 5th/6th shift fork retainer ring.

5th/6th Speed Driven Gear Installation

Tools Required

    • J 39441 5th/6th Driven Gear Installer
    • J 39441-10 5th Gear Installer Adapter

Object Number: 389848 Size: SH

Install the 5th/6th speed driven gear using the J 39441 and J 39441-10 . The smaller outside diameter (OD) of the gear faces down.

Reverse Shift Fork Installation

    Object Number: 388432 Size: SH
  1. Install the reverse shift fork, the synchronizer and the thrust washer.

    2. Object Number: 388431 Size: SH
  2. Install a new shift fork retainer ring.

    3. Object Number: 388430 Size: SH
  3. Install the reverse synchronizer retainer ring.

Reverse Speed Gear Installation

    Object Number: 38238 Size: SH
  1. Install the following parts in order:
    2. 1.1. The blocking ring
    1.2. The wave washer
    1.3. The wave washer so the concave side faces the blocking ring
    1.4. The caged needle bearing
    1.5. The reverse speed gear
    1.6. The thrust washer
    1.7. The retainer ring

    Object Number: 38233 Size: SH
  2. Install the following parts in order:
    3. 2.1. The spacer
    2.2. The roller bearing
    2.3. The spacer
    2.4. The roller bearing retainer ring

Extension Housing Assemble

Tools Required

J 44395 Transmission Holding Fixture


    Object Number: 38379 Size: SH
  1. Install the following parts in order:
    2. 1.1. The funnel
    1.2. The selective shims. Refer to the Countershaft Extension in Shimming Procedures .
    1.3. The countershaft extension bearing race

    Object Number: 105688 Size: SH
  2. Install the following parts in order:
    3. 2.1. The reverse idler shaft
    2.2. The roller bearing
    2.3. The reverse idler gear

    Object Number: 38712 Size: SH
  3. Apply GM P/N 12345382 (Canadian P/N 10953489) or the equivalent to the reverse idler shaft brackets bolt threads.

    4. Object Number: 38375 Size: SH

    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.

  4. Install the following parts in order:
    5. 4.1. The reverse idler shaft bracket
    4.2. The reverse idler shaft bracket bolts

    Tighten
    Tighten the bolts to 25 N·m (18 Ib ft).


    Object Number: 1834744 Size: SH
  5. Install a new gasket GM P/N 89059570 on the extension housing to the transmission case mating surface.

    6. Object Number: 38712 Size: SH
  6. Apply thread sealer GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the top 2 extension housing bolts.

    7. Object Number: 74203 Size: SH

    Important: Align the 5th/6th shift shaft to the extension housing bore in order to install the extension housing.

  7. Install the extension housing.
  8. Install the extension housing bolts.

    9. Tighten
    Tighten the bolts to 48 N·m (36 lb ft).

  9. Install the vent tube.

    10. Object Number: 74206 Size: SH
  10. Remove the J 44395 .

    11. Object Number: 639703 Size: SH
  11. Install the remaining 2 adapter plate bolts (1) and (2).

    12. Tighten
    Tighten the adapter plate bolts to 48 N·m (36 lb ft).


    Object Number: 1538832 Size: SH
  12. Install the auxiliary coolant pump (1) (MZ6 only).
  13. Install the auxiliary coolant pump bolt (2) (MZ6 only).

    14. Tighten
    Tighten the bolt to 19 N·m (14 lb ft).

Transmission Assemble SSR M10

Shift Shaft Assemblies and Gear Clusters Installation

Tools Required

J 36850 Transjel® Lubricant Assembly Lube

  1. Lubricate all components as assembly progresses, using J 36850 .

    2. Object Number: 388448 Size: SH
  2. Install the input shaft in the adapter plate.

    3. Object Number: 388446 Size: SH
  3. Assemble the shift shaft to the mainshaft.
  4. Install the neutral return roll pin to the shift shaft.
  5. Install the mainshaft and the shift shaft assembly into the adapter plate.

    6. Object Number: 1746828 Size: SH
  6. Install the countershaft assembly using the following sequence:
    7. 6.1. Lift up the mainshaft assembly enough in order to install the countershaft assembly.
    6.2. Install the countershaft assembly.
    6.3. Lift the mainshaft assembly enough in order to rotate the input shaft to engage the synchronizer keys with 4th gear blocking ring.

    Object Number: 1746829 Size: SH
  7. Install the 5th/6th and the reverse shift shaft.

    8. Align the slots of the shift shaft levers with the interlock plate.

Transmission Case Installation

Tools Required

J 36850 Transjel® Lubricant


    Object Number: 38403 Size: SH

    Important: Lubricate all components as the assembly progresses. Use J 36850 or the equivalent.

  1. Apply sealant GM P/N 12345739, (Canadian P/N 10953472) or equivalent to the transmission case to adapter plate mating surface.

    2. Object Number: 1831057 Size: SH
  2. Do the following in order to install the transmission case and the offset lever:
    3. 2.1. Shift the transmission into NEUTRAL in order to keep the 3rd/4th shift shaft from engaging.
    2.2. Install the offset lever.
    2.3. Slide the transmission case onto the gear clusters and the shift rail components.

    Object Number: 350592 Size: SH
  3. Apply threadlock GM P/N 12346004, (Canadian P/N 10953480) or equivalent to the threads of the shift lever guide bolts.

    4. Object Number: 1386561 Size: SH

    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.

  4. Install the shift lever guide bolts and pull up on 5th/6th and reverse shift rail assembly. This will help align the slot of the shift interlock plate with the guide bolt hole.

    5. Tighten
    Tighten the bolts to 27 N·m (20 Ib ft).


    Object Number: 1385067 Size: SH
  5. Install the adapter plate to transmission case bolts.

    6. Tighten
    Tighten the bolts to 48 N·m (36 Ib ft).


    Object Number: 1385069 Size: SH
  6. Install the magnets into the transmission case.

    7. Object Number: 1385066 Size: SH
  7. Install the shift detent plug, spring and ball.

    8. Object Number: 388460 Size: SH
  8. Install the shift detent assembly.

    9. Tighten
    Tighten the detent assembly to 40 N·m (30 Ib ft).


    Object Number: 1385065 Size: SH
  9. Install the computer aided gear select solenoid.

    10. Tighten
    Tighten the solenoid to 40 N·m (30 Ib ft).

Countershaft Gear Installation

Tools Required

J 5590 Press Tube


    Object Number: 1746816 Size: SH
  1. Install the spacer, caged needle bearing, and the 6th driven gear.

    2. Object Number: 1746814 Size: SH
  2. Install the speed drive gear synchronizer blocking ring, speed drive gear friction cone, speed drive gear inner cone and speed drive gear thrust washer.

    3. Object Number: 1746830 Size: SH
  3. Install the 5th/6th shift fork, synchronizer sleeve and synchronizer hub assembly using J 5590 and a mallet.

    4. Object Number: 1746831 Size: SH
  4. Install the speed drive gear synchronizer blocking ring, speed drive gear friction cone, speed drive gear inner cone and speed drive gear thrust washer.

    5. Object Number: 1746810 Size: SH
  5. Install the retainer clip from the countershaft.

    6. Object Number: 1746809 Size: SH
  6. Remove the spacer from the countershaft.

    7. Object Number: 1746808 Size: SH
  7. Install the 5th/6th speed shift fork retainer ring.

    8. Object Number: 1746807 Size: SH
  8. Install the needle bearing from the countershaft.

    9. Object Number: 1746806 Size: SH
  9. Install the gear from the countershaft.

    10. Object Number: 1746805 Size: SH
  10. Install the spacer and the countershaft retainer.

    11. Object Number: 1746833 Size: SH
  11. Install the countershaft gear using J 5590 and a mallet.

    12. Object Number: 1746835 Size: SH
  12. Install the countershaft retainer clip.

    13. Object Number: 1746964 Size: SH
  13. Install the 5th/6th shift fork retainer ring.

5th/6th Speed Driven Gear Installation

Tools Required

    • J 39441 5th/6th Driven Gear Installer
    • J 39441-10 5th Gear Installer Adapter

Object Number: 389848 Size: SH

Install the 5th/6th speed driven gear using the J 39441 and J 39441-10 . The smaller outside diameter (OD) of the gear faces down.

Reverse Shift Fork Installation

    Object Number: 388432 Size: SH
  1. Install the reverse shift fork, the synchronizer and the thrust washer.

    2. Object Number: 388431 Size: SH
  2. Install a new shift fork retainer ring.

    3. Object Number: 388430 Size: SH
  3. Install the reverse synchronizer retainer ring.

Reverse Speed Gear Installation

    Object Number: 38238 Size: SH
  1. Install the following parts in order:
    2. 1.1. The blocking ring
    1.2. The wave washer
    1.3. The wave washer so the concave side faces the blocking ring
    1.4. The caged needle bearing
    1.5. The reverse speed gear
    1.6. The thrust washer
    1.7. The retainer ring

    Object Number: 38233 Size: SH
  2. Install the following parts in order:
    3. 2.1. The spacer
    2.2. The roller bearing
    2.3. The spacer
    2.4. The roller bearing retainer ring

    Object Number: 1718918 Size: SH
  3. Install the following parts in order:
    4. • The snap ring
    • The speed sensor rotor
    • The snap ring

    Object Number: 1385064 Size: SH
  4. Install the shift shaft extension.
  5. Install the shift guide.
  6. Install NEW shift guide roll pins.

Extension Housing Assemble

Tools Required

J 39430 Transmission Holding Fixture


    Object Number: 38379 Size: SH
  1. Install the following parts in order:
    2. 1.1. The funnel
    1.2. The selective shims. Refer to the Countershaft Extension in Shimming Procedures .
    1.3. The countershaft extension bearing race

    Object Number: 105688 Size: SH
  2. Install the following parts in order:
    3. 2.1. The reverse idler shaft
    2.2. The roller bearing
    2.3. The reverse idler gear

    Object Number: 38712 Size: SH
  3. Apply GM P/N 12345382, (Canadian P/N 10953489) or the equivalent to the reverse idler shaft brackets bolt threads.

    4. Object Number: 38375 Size: SH

    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.

  4. Install the following parts in order:
    5. 4.1. The reverse idler shaft bracket.
    4.2. The reverse idler shaft bracket bolts.

    Tighten
    Tighten the bolts to 25 N·m (18 Ib ft).


    Object Number: 38416 Size: SH
  5. Apply sealant GM P/N 12345739, (Canadian P/N 10953472) or equivalent to the extension housing to the transmission case mating surface.

    6. Object Number: 38712 Size: SH
  6. Apply thread sealer GM P/N 12346004, (Canadian P/N 10953480) or equivalent to the top 2 extension housing bolts.

    7. Object Number: 1385059 Size: SH

    Important: Align the 5th/6th shift shaft to the extension housing bore in order to install the extension housing.

  7. Install the extension housing.
  8. Install the extension housing bolts.

    9. Tighten
    Tighten the bolts to 48 N·m (36 lb ft).


    Object Number: 1385063 Size: SH
  9. Install the propshaft connector.
  10. Install the propshaft connector nut.

    11. Tighten
    For the CTS only, tighten the nut to 136 N·m (100 lb ft).


    Object Number: 1385061 Size: SH
  11. Install the shifter cover plate.
  12. Install the shifter cover plate bolts.

    13. Tighten
    Tighten the bolts to 20 N·m (15 lb ft).

  13. Install the vent tube.

    14. Object Number: 1385057 Size: SH
  14. Remove the J 39430  (2).

    15. Object Number: 1385053 Size: SH
  15. Install the remaining 2 adapter plate bolts (1) and (2).

    16. Tighten
    Tighten the adapter plate bolts to 48 N·m (36 lb ft).