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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.
GM6194779Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
1-2-3-4-6-7-8-10 Reverse Clutch Assembly

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 1-2-3-4-6-7-8-10-Reverse Clutch Piston Seal- Inner Yes - - Triple Clutch Housing Assemble
2 1-2-3-4-6-7-8-10-Reverse Clutch Piston Dam Seal Yes - - Triple Clutch Housing Assemble
3 1-2-3-4-6-7-8-10-Reverse Clutch Piston Seal- Outer [2x] Yes - - Triple Clutch Housing Assemble
GM6194780Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
1-3-5-6-7-8-9 Clutch Hub and Output Sun Gear Assembly

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 1-3-5-6-7-8-9 Clutch Piston Seal- Inner Yes - - 1-3-5-6-7-8-9 Clutch Hub and Output Sun Gear Assemble
2 1-3-5-6-7-8-9 Clutch Piston Dam Seal- Inner Yes - - 1-3-5-6-7-8-9 Clutch Hub and Output Sun Gear Assemble
3 1-3-5-6-7-8-9 Clutch Piston Seal- Outer Yes - - 1-3-5-6-7-8-9 Clutch Hub and Output Sun Gear Assemble
4 1-3-5-6-7-8-9 Clutch Piston Dam Seal- Outer Yes - - 1-3-5-6-7-8-9 Clutch Hub and Output Sun Gear Assemble
5 1-3-5-6-7-8-9 Clutch Piston Dam Retaining Ring Yes - - 1-3-5-6-7-8-9 Clutch Hub and Output Sun Gear Assemble
GM6194782Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
2-3-4-5-7-9-10 Clutch Assembly

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 2-3-4-5-7-9-10 Clutch Piston Seal- Outer [2x] Yes - - Triple Clutch Housing Assemble
2 2-3-4-5-7-9-10 Clutch Piston Dam Seal Yes - - Triple Clutch Housing Assemble
3 2-3-4-5-7-9-10 Clutch Piston Seal- Inner Yes - - Triple Clutch Housing Assemble
GM6194784Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
4-5-6-7-8-9-10 Reverse Clutch Assembly

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 4-5-6-7-8-9-10-Reverse Clutch Piston Dam Seal- Inner Yes - - Triple Clutch Housing Assemble
2 4-5-6-7-8-9-10-Reverse Clutch Piston Yes - - Triple Clutch Housing Assemble
3 4-5-6-7-8-9-10-Reverse Clutch Piston Dam Seal- Outer Yes - - Triple Clutch Housing Assemble
GM6194785Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Automatic Transmission Case and Associated Components 1 of 2

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Torque Converter Fluid Seal Yes - - Torque Converter Fluid Seal Installation
2 Automatic Transmission Case Front Cover Bolt M6 x 30 [15x] - - Automatic Transmission Case Front Cover Bolt Tightening Sequence  Automatic Transmission Case Front Cover Installation
3 Automatic Transmission Case Front Cover Seal Yes - - Automatic Transmission Case Front Cover Installation
4 Automatic Transmission Case Cover Bolt M8 x 45 [10x] - - Stator Shaft Support Assembly Bolt Tightenine Sequence  Stator Shaft Support Installation (with M1F) , or Stator Shaft Support Installation (without M1F)
5 Automatic Transmission Case Hole PlugM8 x 1.5 [2x] Yes - 40 N.m (30 lb ft) Automatic Transmission Case Plug Installation
6 Transmission Fluid Cooler Pipe Fitting Seal [2x] Yes - - Transmission Fluid Cooler Pipe Fitting Seal Installation
7 Automatic Transmission Fluid Pressure Test Hole Plug1/8-27 NPTF - - 11 N.m (97 lb in) Automatic Transmission Fluid Pressure Test Hole Plug Replacement
GM6194786Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Automatic Transmission Case and Associated Components 2 of 2

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Output Shaft Seal [2x] Yes - - Output Carrier Assembly and Output Carrier Thrust Bearings Installation (2WD) , or Output Carrier Assembly and Output Carrier Thrust Bearings Installation (4WD)
2 Propeller Shaft Oil Seal Sleeve-Model Dependent Yes - - Propeller Shaft Oil Seal Sleeve Installation (2WD)
3 Automatic Transmission Case Extension Seal Yes - - Case Extension Assembly Installation
4 Propeller Shaft Transmission Flange Fluid Seal-Model Dependent Yes - - Case Extension Assemble
5 Automatic Transmission Case Extension Bolt M10 x 35 [12x] - - Automatic Transmission Case Extension Bolt Tightening Sequence  Case Extension Assembly Installation
6 Automatic Transmission Case PlugM10 x 1.25 [4x] Yes - 15 N.m (11 lb ft) Automatic Transmission Case Plug Installation
GM6194787Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Automatic Transmission Fluid Pan, Automatic Transmission Fluid Filter, and Automatic Transmission Fluid Pump

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Automatic Transmission Fluid Pan Bolt M6 x 20.65 [16x] - - Automatic Transmission Fluid Pan Bolt Tightenine Sequence  Transmission Fluid Pan and Filter Assembly Installation
2 Automatic Transmission Fluid Filter Bolt M6 x 25 [2x] - - 5 N.m (44 lb in) Transmission Fluid Pan and Filter Assembly Installation
3 Automatic Transmission Fluid Pump Seal Yes - - Automatic Transmission Fluid Pump Installation
4 Automatic Transmission Fluid Pump Bolt M6 x 28.6 [3x] - - 8 N.m (71 lb in) Automatic Transmission Fluid Pump Installation
5 Automatic Transmission Fluid Pump Drive Shaft Retaining Ring Yes - - Automatic Transmission Fluid Pump Driven Gear Installation
GM5880440Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Automatic Transmission Range Selector Lever Bracket Bolt

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Automatic Transmission Range Selector Lever Cable Bracket Bolt - - 22 N.m (16 lb ft) Automatic Transmission Range Selector Lever Cable Bracket Replacement
GM5907868Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transmission Fluid Cooler Pipe Bracket

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transmission Fluid Cooler Pipe Stud - - 22 N.m (16 lb ft) Transmission Replacement (4WD, L5P, NQH) , or Transmission Replacement (4WD, L5P, NQF) , or Transmission Replacement (2WD, L5P)
GM5880439Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Automatic Transmission Range Selector Lever Cable at Transmission

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Automatic Transmission Range Selector Lever Cable Bolt - - 9 N.m (80 lb in) Automatic Transmission Range Selector Lever Cable Replacement
2 Automatic Transmission Range Selector Lever Cable Bolt - Yes 9 N.m (80 lb in) Automatic Transmission Range Selector Lever Cable Replacement
GM5670942Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Automatic Transmission Range Selector Lever Cable at Transmission Control

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Automatic Transmission Range Selector Lever Cable Bracket Bolt - - 9 N.m (80 lb in) Automatic Transmission Range Selector Lever Cable Replacement
2 Automatic Transmission Range Selector Lever Cable Bolt - Yes 9 N.m (80 lb in) Automatic Transmission Range Selector Lever Cable Replacement
GM5880383Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Automatic Transmission Range Selector Lever Cable Lever Nut

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Automatic Transmission Range Selector Lever Cable Lever Nut - - 30 N.m (22 lb ft) Automatic Transmission Range Selector Lever Cable Lever Replacement
GM6194788Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Automatic Transmission Wiring Harness and Associated Components

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Automatic Transmission Speed Sensor Bolt M6 x 20 [4x] - - 7 N.m (62 lb in) Control Valve Assembly and Transmission Wiring Harness Installation
2 Automatic Transmission Control Wiring Harness Retainer Yes - - Control Valve Assembly and Transmission Wiring Harness Installation
3 Automatic Transmission Control Wiring Harness Clip Bracket Bolt M6 x 19 [3x] - - 12 N.m (9 lb ft) Control Valve Assembly and Transmission Wiring Harness Installation
4 Wiring Harness Connector Seal [2x] Yes - - Control Valve Assembly and Transmission Wiring Harness Installation
GM6194789Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Control Valve Assembly

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Control Valve Body Bolt M6 x 75 [6x] - - Control Valve Solenoid Body Bolt Tightenine Sequence  Control Valve Assembly and Transmission Wiring Harness Installation
2 Control Valve Body Bolt M6 x 65 [3x] - - Control Valve Solenoid Body Bolt Tightenine Sequence  Control Valve Assembly and Transmission Wiring Harness Installation
3 Automatic Transmission Fluid Pump Seal Yes - - Control Valve Assembly Assemble
GM6194790Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Control Valve Body Assembly

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Control Valve Upper Body Bolt M6 x 55 [3x] - - 10.5 N.m (93 lb in) Control Valve Assembly Assemble
2 Valve Body Bolt M6 x 75 - - 10.5 N.m (93 lb in) Control Valve Assembly Assemble
3 Control Valve Upper Body Bolt M6 x 45 [3x] - - 10.5 N.m (93 lb in) Control Valve Assembly Assemble
GM6194791Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Input Internal Gear Assembly

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Direct Overdrive Sun Gear Shaft Seal [4x] Yes - - Input Internal Gear Assemble
GM6194792Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Park System Components

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Manual Shift Detent Spring Bolt M6 x 20.65 - - 9 N.m (80 lb in) Manual Shift Detent Lever with Shaft Position Switch Assembly and Park Pawl Actuator Installation
2 Manual Shift Shaft Seal Yes - - Manual Shift Shaft Seal Installation
3 Manual Shift Shaft Pin Yes - - Manual Shift Detent Lever with Shaft Position Switch Assembly and Park Pawl Actuator Installation
4 Park Pawl Actuator Guide Pin Yes - - Manual Shift Detent Lever with Shaft Position Switch Assembly and Park Pawl Actuator Installation
5 Park Pawl Actuator Guide Seal [2x] Yes - - Manual Shift Detent Lever with Shaft Position Switch Assembly and Park Pawl Actuator Installation
GM6194795Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Power Take Off Assembly 1 of 2

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Power Take-Off Cover Bolt M10 x 30.4 [2x] - - 8 N.m (71 lb in) Power Take-Off Housing Cover Installation
2 Output Shaft Seal Yes - - Output Shaft Seal Installation
3 Power Take-Off Housing Cover Bolt M8 x 30 [3x] - - 8 N.m (71 lb in) Power Take-Off Housing Cover Installation
4 Power Take-Off Housing Cover Seal [2x] Yes - - Power Take-Off Housing Cover Installation
5 Automatic Transmission Fluid Pressure Sensor - - 11 N.m (97 lb in) Power Take-Off Housing Installation
6 Shift Solenoid Valve Bolt M5 x 16.5 [2x] - - 6 N.m (53 lb in) Power Take-Off Housing Installation
7 Power Take-Off Housing Bolt M10 x 35 [6x] - - Power Take-Off Housing Bolt Tightening Sequence  Power Take-Off Housing Installation
8 Power Take-Off Drive Link Cover Bolt M6 x 20.65 [5x] - - Power Take-Off Drive Link Cover Bolt Tightening Sequence  Power Take-Off Drive Link Cover Installation
9 Transmission Heat Shield Bolt M6 x 20.65 [3x] - - 9 N.m (80 lb in) Power Take-Off Drive Link Cover Installation
GM6194797Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Power Take Off Assembly 2 of 2

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Power Take-Off Clutch Piston Seal [2x] Yes - - Power Take-Off Clutch Assemble
2 Power Take-Off Clutch Piston Inner Seal [2x] Yes - - Power Take-Off Clutch Assemble
3 Power Take-Off Clutch Fluid Seal [4x] Yes - - Power Take-Off Clutch Assemble
GM6194799Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Stator Shaft Support Assembly

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transmission Bolt M5 x 15.5 - - 6 N.m (53 lb in) Stator Shaft Support Assemble
2 Stator Shaft Front Seal Yes - - Stator Shaft Support Assemble
3 Transmission Bolt M6 x 25.65 [2x]-Model Dependent - - 9 N.m (80 lb in) Stator Shaft Support Installation (with M1F) , or Stator Shaft Support Installation (without M1F)
4 1-2-3-4-5-6-Reverse Clutch Piston Seal- Outer Yes - - Stator Shaft Support Assemble
5 1-2-3-4-5-6-Reverse Clutch Piston Seal- Inner Yes - - Stator Shaft Support Assemble
6 1-2-8-9-10-Reverse Clutch Piston Outer Seal Yes - - Stator Shaft Support Assemble
7 1-2-8-9-10-Reverse Clutch Piston Inner Seal Yes - - Stator Shaft Support Assemble
GM5880441Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transmission Control Module Bracket Nut

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transmission Control Module Bracket Nut [2x] - - 9 N.m (80 lb in) Transmission Control Module Bracket Replacement
GM5880450Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transmission Heat Shield

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transmission Heat Shield Bolt [3x] - - 9 N.m (80 lb in) Transmission Heat Shield Replacement
GM5880451Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transmission Mount

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transmission Mount Nut [3x] - - First Pass: 45 N.m (33 lb ft)
Final Pass: 45 degrees		 Transmission Mount Replacement (4WD) , or Transmission Mount Replacement (2WD)
2 Transmission Mount Bolt [2x] Yes - First Pass: 100 N.m (74 lb ft)
Final Pass: 60 degrees		 Transmission Mount Replacement (4WD) , or Transmission Mount Replacement (2WD)
3 Transmission Mount Yes - - Transmission Mount Replacement (4WD) , or Transmission Mount Replacement (2WD)
GM5890220Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transmission Studs - Upper

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transmission Stud [5x] - - 58 N.m (43 lb ft) Transmission Replacement (4WD, L5P, NQH) , or Transmission Replacement (4WD, L5P, NQF) , or Transmission Replacement (2WD, L5P)
GM5890222Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transmission Studs and Bolts - Left Side

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transmission Stud - - 58 N.m (43 lb ft) Transmission Replacement (4WD, L5P, NQH) , or Transmission Replacement (4WD, L5P, NQF) , or Transmission Replacement (2WD, L5P)
2 Transmission Bolt - - 58 N.m (43 lb ft) Transmission Replacement (4WD, L5P, NQH) , or Transmission Replacement (4WD, L5P, NQF) , or Transmission Replacement (2WD, L5P)
GM5890224Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transmission Studs and Bolts - Right Side

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transmission Stud - - 58 N.m (43 lb ft) Transmission Replacement (4WD, L5P, NQH) , or Transmission Replacement (4WD, L5P, NQF) , or Transmission Replacement (2WD, L5P)
2 Transmission Bolt - - 58 N.m (43 lb ft) Transmission Replacement (4WD, L5P, NQH) , or Transmission Replacement (4WD, L5P, NQF) , or Transmission Replacement (2WD, L5P)
GM5883036Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transmission Torque Converter Bolt

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transmission Torque Converter Bolt [6x] - Yes 63 N.m (46 lb ft) Transmission Replacement (4WD, L5P, NQH) , or Transmission Replacement (4WD, L5P, NQF) , or Transmission Replacement (2WD, L5P)
GM5907530Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Transmission Vent Hose Clip Bracket Nut

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Transfer Case Vent Hose Clip Nut - - 22 N.m (16 lb ft) Transmission Vent Hose Clip Bracket Replacement (4WD) , or Transmission Vent Hose Clip Bracket Replacement (2WD)
2 Transmission Vent Hose Clip Bracket Nut [2x] - - 9 N.m (80 lb in) Transmission Vent Hose Clip Bracket Replacement (4WD) , or Transmission Vent Hose Clip Bracket Replacement (2WD)
GM6194801Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Turbine Shaft Assembly

Callout Component Name [Component Quantity] Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Turbine Shaft Seal Yes - - Turbine Shaft Seal Installation
2 Turbine Shaft Seal [5x] Yes - - Rotating Clutch, Gear, and Shaft Shell Assembly Assemble
3 Turbine Shaft Seal [5x] Yes - - Turbine Shaft Seal Installation
4 Turbine Shaft Seal [3x] Yes - - Turbine Shaft Seal Installation
5 Turbine Shaft Seal Yes - - Rotating Clutch, Gear, and Shaft Shell Assembly Assemble
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