Buick Regal Owners & Service Manuals
Buick Regal 2018-2024 Service Manual / Transmission / Power Transfer Unit/Transfer Case - AAM / Repair Instructions - On Vehicle / Transfer Case Bracket Replacement (2.0L LTG)

Buick Regal: Transfer Case Bracket Replacement (2.0L LTG)

Removal Procedure

1. Raise and support the vehicle. Lifting and Jacking the Vehicle.

NOTE: The drive shaft remains in the wheel hub.

2. Front Wheel Drive Half Shaft- Right Side@Transfer Case - Disconnect.

3.

Power Transfer Unit/Transfer Case

Remove the 2 transfer case bracket to transfer case bolts (1).

4.

Power Transfer Unit/Transfer Case

Transfer Case Bracket Bolt M8(1) - Remove.

5. Transfer Case Bracket Bolt M10(3) - Remove[2x].

6. Transfer Case Bracket(2) - Remove.

Installation Procedure

1.

Power Transfer Unit/Transfer Case

Transfer Case Bracket(2) - Install.

CAUTION: Fastener Caution

2. Transfer Case Bracket Bolt M10(3) - Install and tighten[2x] 58 N.m (43 lb ft).

3. Transfer Case Bracket Bolt M8(1) - Install and tighten 22 N.m (16 lb ft).

4.

Power Transfer Unit/Transfer Case

Install the 2 transfer case bracket to transfer case bolts (1) and tighten to 22 N.m (16 lb ft).

5. Front Wheel Drive Half Shaft- Right Side@Transfer Case - Connect.

6. Lower the vehicle.

TRANSFER CASE BRACKET REPLACEMENT (3.6L LGX)

Removal Procedure

1. Raise and support the vehicle. Lifting and Jacking the Vehicle.

NOTE: The drive shaft remains in the wheel hub.

2. Front Wheel Drive Half Shaft- Right Side@Transfer Case - Disconnect.

3. Exhaust Front Pipe - Remove.

4. Three-Way Catalytic Converter - Remove.

5.

Power Transfer Unit/Transfer Case

Remove the 2 transfer case to transfer case bracket bolts (1).

6.

Power Transfer Unit/Transfer Case

Transfer Case Bracket Bolt(1) - Remove[2x].

7. Transfer Case Bracket(2) - Remove.

Installation Procedure

1.

Power Transfer Unit/Transfer Case

Transfer Case Bracket(2) - Install.

CAUTION: Fastener Caution

2. Transfer Case Bracket Bolt(1) - Install and tighten[2x] 58 N.m (43 lb ft).

3.

Power Transfer Unit/Transfer Case

Install the 2 transfer case to transfer case bracket bolts (1) and tighten to 22 N.m (16 lb ft).

4. Three-Way Catalytic Converter - Install.

5. Exhaust Front Pipe - Install.

6. Front Wheel Drive Half Shaft- Right Side@Transfer Case - Connect.

7. Lower the vehicle.

POWER TRANSFER UNIT CASE REPLACEMENT

Removal Procedure

1. Remove the front wheel drive half shaft.

2. Remove the three way catalytic converter. Three-Way Catalytic Converter Replacement (Bank 1) Three-Way Catalytic Converter Replacement (Bank 2).

3. Remove the transfer case bracket. 4.

Power Transfer Unit/Transfer Case

Disconnect the power transfer unit vent hose (1) from the power transfer unit (2).

5. Support the power transfer unit case (2) with a suitable jack, and secure with suitable straps.

6.

Power Transfer Unit/Transfer Case

Remove the 4 power transfer unit case bolts (2).

7. Remove the wiring harness bracket bolt and wiring harness bracket from the transfer case.

8. Separate the power transfer unit case from the transmission.

9.

Power Transfer Unit/Transfer Case

Remove and DISCARD the power transfer unit case O-ring.

Installation Procedure

1.

Power Transfer Unit/Transfer Case

Clean the contact surfaces between the power transfer unit and the transmission.

2. Install a NEW power transfer unit case O-ring (1).

3.

Power Transfer Unit/Transfer Case

Support the power transfer unit case with a suitable jack, and secure with suitable straps.

4. Raise and align the power transfer unit case in the correct position in relation to the transmission.

5. Install the power transfer unit case to the transmission.

6. Position the wiring harness bracket to the power transfer unit case.

CAUTION: Refer to Fastener Caution.

7. Install the wiring harness bracket bolt and tighten to 9 N.m (80 lb in).

8.

Power Transfer Unit/Transfer Case

Install the 4 power transfer unit case bolts (2) and tighten to 100 N.m (74 lb ft).

9.

Power Transfer Unit/Transfer Case

Connect the power transfer unit vent hose (1) to the power transfer unit (2).

10. Install the transfer case bracket.

11. Install the front wheel drive half shaft.

12. Install the three way catalytic converter. Three-Way Catalytic Converter Replacement (Bank 1) Three-Way Catalytic Converter Replacement (Bank 2).

POWER TRANSFER UNIT HEAT SHIELD REPLACEMENT

Power Transfer Unit/Transfer Case

Preliminary Procedure

Remove the three-way catalytic converter. Three-Way Catalytic Converter Replacement (Bank 1) Three-Way Catalytic Converter Replacement (Bank 2)

  1. Transfer Case Heat Shield Fasteners[3x]
  2. Transfer Case Heat Shield

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