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Fastener Specifications

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
GM6282013Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transfer Case Control Module Bracket Bolt

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Transfer Case Control Module Bracket Bolt [2x] - - 9 N.m (80 lb in) Transfer Case Control Module Replacement
GM6318392Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transfer Case Front Case Half and Components (w/MGM or MGU)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Transfer Case Bolt [12x] - - Transfer Case Bolt Tightening Sequence  Transfer Case Assembly Replacement (with MGM, MGU)
2 Transfer Case Front Output Shaft Seal Yes - - Transfer Case Front Output Shaft Seal Replacement
3 Transfer Case Front Output Shaft Oil Slinger Yes - - Transfer Case Assemble (with MGM, MGU)
4 Transfer Case Vent Yes Yes - Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
5 Transfer Case Input Shaft Seal Yes - - Transfer Case Input Shaft Seal Replacement (with MGM or MGU)
GM6319145Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transfer Case Front Case Half and Components (w/MYD)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Transfer Case Nut [8x] - - 58 N.m (43 lb ft) Transfer Case Assembly Replacement (with MYD)
2 Transfer Case Adapter Gasket Yes - - Transfer Case Assembly Replacement (with MYD)
3 Transfer Case Stud [8x] - - 11 N.m (97 lb in) Transfer Case Assembly Replacement (with MYD)
4 Transfer Case Vent Yes Yes - Transfer Case Assemble (with MYD)
5 Transfer Case Front Output Shaft Seal Yes - - Transfer Case Front Output Shaft Seal Replacement
6 Transfer Case Front Output Shaft Oil Slinger Yes - - Transfer Case Assemble (with MYD)
7 Transfer Case Input Shaft Seal Yes - - Transfer Case Input Shaft Seal Replacement (with MYD)
GM6306044Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
NOTE:

Transfer case for transmission RPO MYD shown. Information is the same for transmission RPO's MGM and MGU.

Transfer Case Input Shaft Bearing-Front

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transfer Case Input Shaft Inner Retaining Ring Yes - - Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
2 Transfer Case Input Shaft Bearing Yes - - Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
GM6318834Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transfer Case Input Shaft Retaining Ring

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transfer Case Input Shaft Retaining Ring Yes - - Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
GM6305461Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
NOTE:

Transfer case for transmission RPO MYD shown. Information is the same for transmission RPO's MGM and MGU.

Transfer Case Input Shaft Bearing Outer Retaining Ring

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transfer Case Input Shaft Bearing Outer Retaining Ring Yes - - Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
GM6319079Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transfer Case Front Output Shaft Drive Sprocket Retaining Ring

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transfer Case Front Output Shaft Drive Sprocket Retaining Ring Yes - - Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
GM6308689Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transfer Case Rear Output Shaft Rear Bearing

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transfer Case Rear Output Shaft Rear Bearing Retaining Ring [2x] Yes - - Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
2 Transfer Case Rear Output Shaft Rear Bearing Yes - - Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
GM6318347Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
NOTE:

Transfer case for transmission RPO MYD shown. Information is the same for transmission RPO's MGM and MGU.

Transfer Case Four Wheel Drive Actuator Shaft Lever Bearing Replacement- Front

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transfer Case Shift Cam Shaft Bearing Yes - - Transfer Case Four Wheel Drive Actuator Lever Shaft Bearing Replacement - Front (MGM or MGU) , or Transfer Case Four Wheel Drive Actuator Lever Shaft Bearing Replacement - Front (MYD)
GM6318349Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transfer Case Four Wheel Drive Actuator Shaft Lever Bearing Replacement- Rear

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transfer Case Shift Cam Shaft Bearing Yes - - Transfer Case Four Wheel Drive Actuator Lever Shaft Bearing Replacement - Rear
GM6318370Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Front Output Shaft Front and Rear Bearing Replacement

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transfer Case Front Output Shaft Rear Bearing Yes - - Front Output Shaft Front and Rear Bearing Replacement
2 Transfer Case Front Output Shaft Front Bearing Yes - - Front Output Shaft Front and Rear Bearing Replacement
GM5736506Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transfer Case Two/Four Wheel Drive Compound Gear Bracket Bolt

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Transfer Case Two/Four Wheel Drive Compound Gear Bracket Bolt [3x] - - 25 N.m (18 lb ft) Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
GM5591982Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
NOTE:

Transfer case for transmission RPO MYD shown. Information is the same for transmission RPO's MGM and MGU.

Transfer Case Oil Pump Suction Pipe Seal

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Transfer Case Oil Pump Suction Pipe Seal Yes - - Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
GM5528564Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transfer Case Rear Case Half and Components

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Transfer Case Half Bolt [20x] - - 22 N.m (16 lb ft) Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
2 Transfer Case Input Shaft Bearing Outer Retaining Ring Yes - - Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
3 Transfer Case Access Hole Plug [2x] Yes - - Transfer Case Assemble (with MYD) , or Transfer Case Assemble (with MGM, MGU)
4 Transfer Case Rear Output Shaft Seal Yes - - Rear Output Shaft Seal Replacement (with MYD) , or Rear Output Shaft Seal Replacement (with MGM or MGU)
5 Transfer Case Oil Fill Plug - Yes 20 N.m (15 lb ft) Transfer Case Fluid Replacement
6 Transfer Case Oil Drain Plug - Yes 20 N.m (15 lb ft) Transfer Case Fluid Replacement
GM5527181Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
NOTE:

Transfer case for transmission RPO MYD shown. Information is the same for transmission RPO's MGM and MGU.

Transfer Case Two/Four Wheel Drive Actuator and Transfer Case Two/Four Wheel Drive Actuator Position Sensor

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure
Metric (English)
1 Transfer Case Two/Four Wheel Drive Actuator Position Sensor Gasket Yes - - Transfer Case Two/Four Wheel Drive Actuator Position Sensor Replacement
2 Transfer Case Two/Four Wheel Drive Actuator Sensor Bolt [2x] - - 6 N.m (53 lb in) Transfer Case Two/Four Wheel Drive Actuator Position Sensor Replacement
3 Transfer Case Two/Four Wheel Drive Actuator Sensor Bolt [4x] - - 18 N.m (13 lb ft) Transfer Case Two/Four Wheel Drive Actuator Replacement
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