Main Shaft Assembly (4WD)
Note: see previous pages in this chapter for major component removal.
Components
- Vacuum Pipe Assembly
- Vacuum Actuator
- Inner Shaft Assembly
- Front Housing Assembly
- Oil Seal
- Bearing
- Main Shaft
- Oil Seal
Fastener torques
| Torque | Nm (kgf·m) |
|---|---|
| T = 17 | (1.7; 150 in-lb) |
| T = 49–59 | (5.0–6.0; 36–44 ft-lb) |
| T = 83 | (8.5; 61 ft-lb) |

Bearing removal
Tool: MB990673 (Bearing Remover).
Note: once bearings have been removed they cannot be reused.
Installation tips
- Use tools MB990938 and MB990926 to install new oil seal.
Note: coat the outside lip with axle grease before installation.
- Bearing installation press point setup — tool MB990663 (Bearing Installer) with MB990938.
- Oil seal installation procedure — tool MB990938, MB990927.
Note: coat the outside lip with axle grease before installation.
(verify printed p.212) — tool numbers MB990938, MB990926, and MB990927 are printed clearly but do not appear in the front-axle special tools table (Front Axel Specifications & Tools); confirm these against the full tool catalogue before ordering.
