Front Differential Carrier and Components
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.
Front Differential Carrier and Components
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Front Differential Drive Pinion Gear Nut | Yes | - | Used Bearings Tighten the pinion nut, in small increments, as needed, until the torque required to rotate the pinion is 0.40-0.57 N.m (3-5 lb in) greater than the torque recorded during removal. |
Front Differential Drive Pinion Gear Yoke Replacement |
| New Bearings Tighten the pinion nut, in small increments, as needed, until the torque required to rotate the pinion is 2.7-3.9 N.m (23-35 lb in). |
Front Differential Drive Pinion Gear Inner Bearing Replacement | ||||
| 2 | Front Differential Drive Pinion Gear Seal | Yes | - | - | Front Differential Drive Pinion Gear Seal Replacement |
| 3 | Front Differential Drive Pinion Gear Bearing Spacer | Yes | - | - | Front Differential Ring and Drive Pinion Gear Replacement |
| 4 | Front Differential Carrier Oil Drain Plug | - | - | 33 N.m (24 lb ft) | Front Axle Lubricant Replacement |
| 5 | Front Differential Carrier Vent Hose Connector | - | Yes | 28 N.m (21 lb ft) | Front Axle Vent Hose Connector Replacement |
| 6 | Front Wheel Drive Shaft Seal | Yes | - | - | Front Wheel Drive Shaft Seal Replacement - Left Side (with SRW) , or Front Wheel Drive Shaft Seal Replacement - Left Side (with DZW) |
| 7 | Front Differential Carrier Cover Gasket | Yes | - | - | Front Differential Carrier Cover Gasket Replacement |
| 8 | Front Differential Carrier Oil Filler Plug | - | - | 33 N.m (24 lb ft) | Front Axle Lubricant Level Inspection |
| 9 | Front Axle Housing Cover Bolt [12x] | - | Yes | 42 N.m (31 lb ft) | Front Differential Carrier Cover Replacement |
| 10 | Front Differential Ring Gear Bolt [12x] | Yes | Yes | First Pass: 100 N.m (74 lb ft) Final Pass: 20 degrees |
Front Differential Ring and Drive Pinion Gear Replacement |
| 11 | Front Drive Axle Actuator | - | - | 30 N.m (22 lb ft) | Front Drive Axle Actuator Replacement |
| 12 | Front Wheel Drive Shaft Seal | Yes | - | - | Front Wheel Drive Shaft Seal Replacement - Right Side |
| 13 | Front Drive Axle Inner Shaft Housing Bolt [6x] | - | - | First Pass: 40 N.m (30 lb ft) Final Pass: 35 degrees |
Front Drive Axle Inner Shaft Housing Replacement |
| 14 | Front Differential Carrier Cover Gasket | Yes | - | - | Front Drive Axle Inner Shaft Housing Replacement |