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.
NOTE:
Callouts in the following chart represent components shown in graphic above.
Assist Step (with B3L)
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Wiring Harness Retainer Bolt [2x] | - | - | 5 N.m (44 lb in) | Assist Step Wire Replacement |
| 2 | Assist Step Finish Cap Bolt [2x] | - | - | 5 N.m (44 lb in) | Assist Step Front Finish Cap Replacement |
| 3 | Assist Step Shield Bolt [7x] | - | - | 5 N.m (44 lb in) | Assist Step Insert Replacement |
| 4 | Assist Step Bracket Bolt [4x] | - | - | 12 N.m (106 lb in) | Assist Step Replacement (with B3L) |
| 5 | Assist Step Shield Bolt (Link Assembly) [4x] | - | - | 5 N.m (44 lb in) | Assist Step Shield Replacement |
| 6 | Assist Step Bolt [6x] | - | - | 22 N.m (16 lb ft) | Assist Step Rear Bracket Replacement - Left Side |
| Assist Step Rear Bracket Replacement - Right Side Assist Step Replacement (with B3L) |
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| 7 | Assist Step Shield Bolt (Motor) [2x] | - | - | 5 N.m (44 lb in) | Assist Step Shield Replacement |
| 8 | Assist Step Rod Bolt [2x] | - | - | 14 N.m (124 lb in) | Assist Step Rod Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Assist Step (without B3L)
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Assist Step Bolt [6x] | - | - | 22 N.m (16 lb ft) | Assist Step Replacement (without B3L) |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Assist Step Control Module
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Assist Step Bracket Bolt [2x] | - | - | 3 N.m (27 lb in) | Running Board Control Module Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Body Mount Upper Location Number 1 Cushion
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Body Mount Nut [2x] | - | - | 43 N.m (32 lb ft) | Body Mount Upper Location Number 1 Cushion Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Body Mount Upper Location Number 2 Cushion
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Body Mount Nut [2x] | - | - | 43 N.m (32 lb ft) | Body Mount Upper Location Number 2 Cushion Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Body Mount Upper Location Number 3 Cushion
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Body Mount Nut [2x] | - | - | 43 N.m (32 lb ft) | Body Mount Upper Location Number 3 Cushion Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Body Upgrade Mount
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Body Mount Nut [2x] | - | - | 43 N.m (32 lb ft) | Body Upgrade Mount Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Drivetrain and Front Suspension Frame Front Crossmember
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Drivetrain and Front Suspension Frame Reinforcement Bolt [4x] | - | - | - | Drivetrain and Front Suspension Frame Front Crossmember Replacement |
| 2 | Drivetrain and Front Suspension Frame Reinforcement Nut [4x] | - | - | First Pass: 75 N.m (55 lb ft) Final Pass: 90 degrees - 105 degrees |
Drivetrain and Front Suspension Frame Front Crossmember Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Frame To Body Mount Bolts
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Body Mount Bolt [8x] | - | - | 165 N.m (122 lb ft) | Body Mount Upper Location Number 1 Cushion Replacement |
| Body Mount Upper Location Number 2 Cushion Replacement | |||||
| Body Mount Upper Location Number 3 Cushion Replacement | |||||
| Body Upgrade Mount Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Front Brake Hose Bracket
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Front Brake Hose Bracket Bolt [2x] | - | - | 12 N.m (9 lb ft) | Body Mount Upper Location Number 1 Cushion Replacement |
| Body Mount Upper Location Number 2 Cushion Replacement | |||||
| Body Mount Upper Location Number 3 Cushion Replacement | |||||
| Body Upgrade Mount Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Front Tow Hook
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Front Tow Hook Nut [2x] | - | - | 75 N.m (55 lb ft) | Front Tow Hook Replacement |
| 2 | Front Tow Hook Bolt [2x] | - | - | - | Front Tow Hook Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Front Wheelhouse Liner
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Front Wheelhouse Liner Bolt [10x] | - | - | 2.5 N.m (22 lb in) | Front Wheelhouse Liner Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Front Wheelhouse Liner Bracket- Lower
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Front Wheelhouse Liner Bolt [2x] | - | - | 2.5 N.m (22 lb in) | Front Wheelhouse Liner Bracket Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Front Wheelhouse Liner Bracket- Upper
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Front Wheelhouse Liner Bolt | - | - | 2.5 N.m (22 lb in) | Front Wheelhouse Liner Bracket Replacement - Left Side Upper |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Rear Frame Heat Shield (with Z6A)
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Rear Frame Heat Shield Bolt [4x] | - | - | 13 N.m (115 lb in) | Rear Frame Heat Shield Replacement (with Z6A) |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Rear Frame Heat Shield (without Z6A)
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Rear Frame Heat Shield Bolt [4x] | - | - | 13 N.m (115 lb in) | Rear Frame Heat Shield Replacement (without Z6A, without L5P) , or Rear Frame Heat Shield Replacement (without Z6A, with L5P) |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Rear Tire Front Air Deflector Dual Wheel
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Rear Tire Front Air Deflector Bolt [5x] | - | - | 2.5 N.m (22 lb in) | Rear Tire Front Air Deflector Replacement (without DZW) , or Rear Tire Front Air Deflector Replacement (with DZW) |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Rear Tire Front Air Deflector Single Wheel
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Rear Tire Front Air Deflector Bolt [5x] | - | - | 2.5 N.m (22 lb in) | Rear Tire Front Air Deflector Replacement (without DZW) , or Rear Tire Front Air Deflector Replacement (with DZW) |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Rear Wheelhouse Liner
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Rear Wheelhouse Liner Bolt [7x] | - | - | 2.5 N.m (22 lb in) | Rear Wheelhouse Liner Replacement |
| 1 | Rear Wheelhouse Liner Nut [2x] | - | - | 2.5 N.m (22 lb in) | Rear Wheelhouse Liner Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Spare Wheel Heat Shield
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Spare Wheel Heat Shield Bolt | - | - | 13 N.m (115 lb in) | Spare Wheel Heat Shield Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Transfer Case Skid Shield
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Transfer Case Skid Shield Bolt [3x] | - | - | 28 N.m (21 lb ft) | Transfer Case Skid Shield Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Transmission Support Crossmember (2WD)
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Transmission Support Crossmember Bolt [4x] | - | - | - | Transmission Support Crossmember Replacement (L5P) , or Transmission Support Crossmember Replacement (L8T, 2WD) |
| 2 | Transmission Support Crossmember Nut [4x] | - | - | 115 N.m (85 lb ft) | Transmission Support Crossmember Replacement (L5P) , or Transmission Support Crossmember Replacement (L8T, 2WD) |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Transmission Support Crossmember (4WD)
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Transmission Support Crossmember Bolt [4x] | - | - | - | Transmission Support Crossmember Replacement (L8T, 4WD) , or Transmission Support Crossmember Replacement (L5P) |
| 2 | Transmission Support Crossmember Nut [4x] | - | - | 115 N.m (85 lb ft) | Transmission Support Crossmember Replacement (L8T, 4WD) , or Transmission Support Crossmember Replacement (L5P) |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Underbody Skid Shield
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Underbody Splash Shield Bolt [2x] | - | - | 20 N.m (15 lb ft) | Underbody Skid Shield Replacement |
| 2 | Underbody Skid Shield Bolt [2x] | - | - | 20 N.m (15 lb ft) | Underbody Skid Shield Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Underbody Splash Shield
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Underbody Splash Shield [4x] | - | - | 20 N.m (15 lb ft) | Underbody Splash Shield Replacement |