Vehicles after change point in 1982
REPLACING SHAFT SEAL FOR
INPUT FLANGE
- Final Drive Removed -
Removing and installing final drive - see
33 10 010 in pertinent model repair manual
beginning with 1985 models.
Mount final drive on Special Tool 33 1 010.
Drain oil.
Installation:
Pour in oil - oil volume*.
See Service Information of Group 00 for oil
grade.


33 10 010
* See Specifications

Lift out lockplate.
Installation:
Drive in new lockplate with Special Tools
33 4 050 and 00 5 500.

Punch mark position of nut (1) to input shaft.

Unscrew nut (1), counterholding on flange
with Special Tool 23 0 020.

Pull off input flange with Special Tool
33 1 150.

Pull out shaft seal with Special Tool 00 5 010
and a suitable thrust piece.

Installation:
If bearing surface on input flange is scored
seriously, replace the input flange.
Important!
If the input flange has to be replaced, measure
the friction torque with the old input flange.
If applicable, tighten nut to the punch mark,
measure and note friction torque value - see
33 11 011.
The old shaft seal does not have to be installed
for measuring.


33 11 011

Dip new shaft seal in final drive gear lube**
and drive in seal flush with Special Tool
33 1 270 or 33 1 190.


** See Service Information of Gr. 00

Press on input flange, if necessary with
Special Tool 23 1 300; do not tighten.
This requires first screwing Special Tool
33 1 340 on threads of input shaft
completely.

Tighten input flange with collar nut (1) and
then turn nut further until punch marks are
aligned precisely.
Caution!
Never tighten collar nut past the punch marks
and then back again, since the the bushing
will have to be replaced - see 33 12 551.
Installation:
Replace lockplate.
Pour in final drive gear lube**.


33 12 551
** See Service Information of Gr. 00