33 11 021 Replacing shaft seal for drive flange on rear differential (inserted propeller shaft): Notes

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Special tools required:

00 5 010
33 0 120
33 5 050
33 5 060
33 5 070

IMPORTANT: Use only approved gear oils.

Failure to comply with this instruction will result in serious damage to the rear differential!

Necessary preliminary tasks:

Remove propeller shaft

Remove retaining clip (1) and insert nut (2) with diaphragm seal.

Fig 1: Identifying Retaining Clip With Nut

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Mark position of flange nut (1) to bevel pinion (2).

Fig 2: Identifying Flange Nut With Bevel Pinion

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Release flange nut with special tools 33 5 050 and 33 5 070 ; to do so, grip bevel pinion with special tools 33 5 060 and 33 5 070.

Fig 3: Removing Flange Nut With Special Tools (33 5 050 And 33 5 070)

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Withdraw shaft seal with special tool 00 5 010.

Fig 4: Removing Shaft Seal With Special Tool (00 5 010)

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Coat sealing lips of new shaft seal and sealing face of bevel pinion with differential oil.

Drive in shaft seal with special tool 33 0 120 .

Fig 5: Identifying Special Tool (33 0 120)

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Clean bevel pinion thoroughly to remove remnants of screw-locking agent.

Fig 6: Identifying Bevel Pinion

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Check dust cover for damage, replace if necessary.

IMPORTANT: Clean flange nut thoroughly to remove remnants of grease and screw-locking agent.

Pack collar insert (1) of flange nut with grease.

Apply a thin coating of grease to shaded area (2) of flange nut.

Coat at least four thread turns of flange nut with "DREI BOND adhesive type 1385".

Fig 7: Applying Thin Coating Of Grease To Shaded Area Of Flange Nut

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IMPORTANT: In order to avoid damaging the rear differential, do not under any circumstances tighten down the flange nut (1) beyond the marker point of the bevel pinion (2).

Fig 8: Identifying Flange Nut With Bevel Pinion

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Place insert nut (2) with diaphragm seal in flange nut.

Install retaining clip (1).

Fig 9: Identifying Retaining Clip With Nut

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