31 51 010 Replacing Radial Seal For Drive Flange Of Front Differential

Special tools required: 

• 23 0 020 
• 31 5 130 
• 33 1 150 

Necessary preliminary tasks: 

• Remove reinforcement plate  . See 31 10 010 REMOVING AND INSTALLING/REPLACING REINFORCEMENT PLATE .

Mark position of nut with respect to shaft with punch marks (arrow).

Lever out lockplate (1) with a suitable tool.

Fig 1: Locating Lockplate

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Secure drive flange with special tool 23 0 020  against turning and release nut (1).

Fig 2: Identifying Drive Flange Nut And Special Tool

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Pull drive flange off drive shaft with special tool 33 1 150  .

Fig 3: Identifying Special Tool (33 1 150)

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Lever shaft seal (1) out of front differential with a suitable screwdriver (2).

Fig 4: Identifying Shaft Seal And Screwdriver

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Installation: 

Drive in shaft seal with special tool 31 5 130  as far as it will go.

Coat sealing lips of new shaft seal (1) with front differential oil.

Fig 5: Identifying Special Tool (31 1 150)

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Clean drive flange and attach.

Tighten down nut until punch marks on nut and shaft are aligned.

Install new lockplate (1).

Fig 6: Locating Lockplate

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After installation: 

• Check front differential oil level  , correct if necessary. See 31 50... CHANGING FRONT DIFFERENTIAL OIL .