33 10 010 Removing And Installing/Replacing Rear Differential

Special tools required: 

• 33 5 120 
• 33 5 122 
• 33 5 125 
• 33 5 200 
• 33 5 206 

Necessary preliminary tasks: 

• Remove propeller shaft on rear differential  . See 26 11 000 REMOVING AND INSTALLING PROPELLER SHAFT (INSERTED) COMPLETELY .

Position special tool 33 5 200  on workshop jack.

Support rear differential with special tool 33 5 200  .

Lash rear differential with tightening strap 33 5 206  to special tool 33 5 200  .

Fig 1: Identifying Special Tool (33 5 200) And (33 5 206)

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Release screws (1).

Installation: 

Adhere to the installation sequence at the end of the document in order to prevent distortion of the rear differential during installation and thereby avoid potential complaints about noise.

Fig 2: Identifying Screws

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Release nut and remove bolt (1) towards front.

Installation: 

Adhere to the installation sequence at the end of the document in order to prevent distortion of the rear differential during installation and thereby avoid potential complaints about noise.

Fig 3: Identifying Bolt

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Tape off output shafts or place a cloth on swinging arm.

Lower rear differential slowly with aid of workshop jack and press to one side.

Fig 4: Identifying Output Shafts

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Fig 5: Identifying All-Round Slot On Output Shaft

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Press output shaft by jerks and jolts with special tool 33 5 120  out of rear differential. Here, thrust piece of bolt 33 5 122  must rest on rear differential.

Fig 6: Identifying Special Tools (33 5 120) And (33 5 122)

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Installation: 

Drive output shaft with special tool 33 5 125  and a rubber mallet into rear differential.

Fig 7: Identifying Special Tools (33 5 125) And (33 5 206)

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Feed output shaft out of rear differential and tie up.

Installation: 

Replace shaft seal(s) for output shaft(s)  . See 33 10 021 REPLACING SHAFT SEAL(S) FOR OUTPUT SHAFT(S), REAR AXLE DIFFERENTIAL .

Fig 8: Identifying Output Shaft Of Rear Differential

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Installation: 

Check spline teeth, replaced damaged parts if necessary.

Check dust plate (1) for damage, replace if necessary.

Replace retaining ring (2).

Coat highlighted contact surface (3) of output shaft with approved rear differential oil  . See REAR AXLE - OPERATING FLUIDS .

Fig 9: Identifying Dust Plate, Retaining Ring And Contact Surface

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Installation: 

Insert output shaft into rear differential.

Pull out assembly protection ring at lug (1) until one of the two programmed rupture points gives.

Fig 10: Identifying Ring At Lug

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Installation sequence: 

1. Install rear differential with workshop lifter and special tool 33 5 200  in rear axle carrier
2. Insert bolts (1) (do not tighten down)
3. Insert bolt from rear and replace nut (2) (do not tighten down)
4. Release tightening strap, lower special tool 33 5 200  and move away
5. Tighten down bolts (1)

   Tightening torque. See REAR AXLE - TIGHTENING TORQUES .

6. Tighten nut (2)

   Tightening torque. See REAR AXLE - TIGHTENING TORQUES .

   Fig 11: Identifying Bolts And Nut

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After installation: 

• Check rear differential oil level  , correct if necessary. See 00 11 ... CHECKING/TOPPING UP OIL LEVEL IN REAR DIFFERENTIAL .