Early Production

Disassembly





- Unscrew joint flange mounting bolt and remove joint flange from both sides.
- Remove side cover.
- Remove differential assembly.





- Drive out differential pinion shaft roll pin.
- Drive out differential pinion shaft with a mandrel and remove anchor piece.





- Remove taped roller bearing with a puller and thrust piece P 263.

Caution: Do not interchange spacer washers and shims. Attach tags to prevent mixing up right side with left and vice versa.

- Remove lock plates from ring gear retaining bolts. Remove bolts and take off ring gear.





NOTE: With the 1976 Model the tapered roller bearing is pulled off through openings in the magnetic carrier disc with an extractor and special tool P 263.





- When replacing the magnetic carrier disc the tapered roller bearing preload does not have to be checked if the same shims are used again.

Assembly
- Slide lock plates into grooves in bolt heads. Close open ends with pliers to firmly attach the plates to bolt heads.
^ Torque to: locking, material 11.9 - 140-150 Nm (103-110 ft lb)
locking, material 12.9 - 150-160 Nm (110-118 ft lb)
- Secure bolts by bending the plates down on one side of the hex surface.
- Coat thrust surfaces of the differential pinions in the differential housing with Molykote or similar lubricant.
- Insert large differential pinion (side gears) through oval opening in the housing.
- Center the pinions by inserting the flange shafts.
- Insert small differential pinions through the opening in the housing and position them opposite each other so that bores align with the bores in the housing.





- Insert threaded retainers with lock rings into the large differential pinions (side gears) and slide the anchor piece between the threaded retainers.

CAUTION: Position the locating hole of the differential pinion shaft so it aligns with the hole of the anchor piece.





- Hold the anchor piece in place (to prevent binding) and drive in the differential pinion shaft.
- Place marked or measured bearing shims and spacer washers on the differential housing. Install tapered roller bearing using thrust piece P 264.
- Re-adjust ring and pinion gears if necessary. Adjustments-- Ring/Pinion Adjustment