![](https://motoinstruction.ru/img/bmw/21/127413.jpg)
- Coat splines of rear universal shaft (1) with Optimoly MP 3.
Caution: Make sure that the inner race never presses against the ends of the needles.
- Install the inner races (arrows) of the left and right needle roller bearings with a small quantity of grease.
- Push the flexible gaiter on to the neck of the housing and secure it with the clamping strap.
- Hold the rear wheel drive with flexible gaiter in position and push the rear drive shaft (1) on to the journal of the front drive shaft.
![](https://motoinstruction.ru/img/bmw/21/127414.jpg)
Caution: Support the rear wheel drive.
- Screw in the fixed bearing stud (3).
![](https://motoinstruction.ru/img/bmw/21/127415.jpg)
- Install floating bearing stud (7).
- Tighten fixed bearing stud (3).
- Tighten the floating bearing stud (7).
- Hold floating bearing stud (7) with socket wrench, BMW No. 33 5 642, to prevent it turning and tighten locknut (8) with socket, BMW No. 33 6 641.
- Tighten loose reaction link (4).
- Tighten clamping strap (2) on gaiter.
- Install oil drain plug (5) with new sealing ring and tighten.
- Refill with gearbox oil to correct level.
- Tighten the oil filler plug (6), using a new sealing ring.
Tightening torques:
- Fixed bearing stud — 160 Nm
- Floating bearing stud — 7 Nm
- Locknut — 160 Nm
- Reaction link to rear wheel drive — 43 Nm
- Reaction link to frame — 43 Nm
- Oil filler/drain plug — 23 Nm
Quantity:
- Initial filling — 0.25 (0.44 Imp. pint/0.26 US quarts)
- Oil changes — 0.23 (0.40 Imp. pint/0.24 US quarts) or to bottom edge of filler neck
Oil grade:
- Brand-name hypoid gear oil, SAE 90, API class GL 5
- Install the brake disc.
See Group 34.
- Install brake caliper.
See Group 34.
- Install the inductive signal transmitter.
See Group 61.
- Install the rear wheel.
See Group 36.