Fastener Specifications
WARNING: This page is about a different car, the 2021 GMC Sierra 3500 HD and 2021 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Single Use Non-Threaded Fasteners/Components
|
NOTE:
All fasteners/components listed in this table MUST BE DISCARDED and replaced with NEW after removal. |
|---|
| Application |
| Axle Shaft Seals |
| Differential Adjuster Nut Lock Ring |
| Drive Pinion Gear Collapsible Spacer |
| Drive Pinion Gear Nut |
| Drive Pinion Gear Washer |
| Front Differential Carrier Cover Gasket |
| Pinion Gear Shaft Lock Pin |
Single Use Threaded Fastener/Component Tightening Specifications
|
NOTE:
All fasteners/components listed in this table MUST BE DISCARDED and replaced with NEW after removal. |
|
|---|---|
| Application | Specification |
| Metric (English) | |
| Ring Gear Bolts | |
|
100 N.m (74 lb ft) |
|
20 degrees |
Reusable Threaded Fastener Tightening Specifications
|
NOTE:
All fasteners listed in this table can be reused after removal. |
|
|---|---|
| Application | Specification |
| Metric (English) | |
| Differential Carrier Assembly Mounting Bolts | 110 N.m (81 lb ft) |
| Differential Carrier Bracket to Frame Bolts | 160 N.m (118 lb ft) |
| Front Differential Housing Cover Bolt | 37 - 47 N.m (27 - 35 lb ft) |
| Front Drive Axle Actuator | 25 - 35 N.m (18 - 26 lb ft) |
| Inner Shaft Housing to Bracket Nuts | 100 N.m (74 lb ft) |
| Front Drive Axle Inner Shaft Housing Bolt | |
|
40 N.m (30 lb ft) |
|
35 degrees |
| Front Differential Carrier Oil Drain Plug | 25 - 40 N.m (18 - 30 lb ft) |
| Front Differential Carrier Oil Filler Plug | 25 - 40 N.m (18 - 30 lb ft) |
| Vent Hose Connector | 28 N.m (21 lb ft) |