Installing output shaft
Replace shaft seal in front differential . See 31 51 015 REPLACING SHAFT SEAL FOR LEFT OUTPUT SHAFT or 31 51 020 REPLACING SHAFT SEAL FOR RIGHT OUTPUT SHAFT .
Check FRONT AXLE GEARBOX OIL LEVEL , correct if necessary.
Check splines and replaced parts if damaged.
Install retaining ring (1).
Coat highlighted contact surface (2) of output shaft with approved front axle gearbox oil. See FRONT AXLE - OPERATING FLUIDS .
Press swivel bearing slightly to one side and insert output shaft into front differential.
Pull out assembly protection ring at lug (1) until one of the two predetermined breaking points gives.
Slide output shaft to the limit position into front axle differential. Output shaft must snap audibly into place.
Press swivel bearing slightly to one side and insert output shaft into wheel bearing.
Move steering to straight-ahead position.
Draw output shaft into drive flange.
Install LOWER CONTROL ARM .
Remove steering gear cover at top and bottom . See 51 71... REMOVING AND INSTALLING/REPLACING TOP RIGHT STEERING BOX COVER , 51 71... REMOVING AND INSTALLING/REPLACING BOTTOM LEFT OR RIGHT STEERING BOX COVER or 51 71... REMOVING AND INSTALLING/REPLACING TOP LEFT STEERING BOX COVER .
Install reinforcement plate .
Remove special tool 31 4 170 for swivel bearing (1).
Use plugs from spring strut dome.
Install LEFT MICROFILTER HOUSING COVER .
Replace collar nut (1), oil collar nut/wheel bearing contact surface only and tighten down.
No oil permitted on thread of shaft journal or collar nut.
Tightening torque 31 21 2AZ .
Secure collar nut by positive peening on flat areas of output shaft.
Install FRONT WHEEL .