42211900 Removing and installing rear drive shaft
WM 422119 Removing and installing rear drive shaft
Tools
Preliminary work
1. Remove the relevant rear wheel.
=> 440519 Removing and installing wheel.
=> 440519 Removing and installing wheel with central bolt.
Removing
Removing rear drive shaft
Information
- To prevent damage to the drive shaft, rear axle support side member or transmission flange, a protective tube (shop-made) 00000 must be pushed over the drive shaft or the drive shaft must be secured.
- During removal of the drive shaft, the wheel bearing housing remains in the vehicle and is swivelled outwards at the top side.
1. Fit protection -arrow- for drive shaft. Release inner end of drive shaft from the transmission.
Protection on drive shaft
2. Loosen the drive shaft at the wheel hub. To do this, get another mechanic to help by operating the brake.
2.1. Procedure (for loosening the drive shaft at the wheel hub) on vehicles with central bolts:
2.1.1. Remove the lockable wheel bolt (locking mechanism).
Lockable wheel bolt (locking mechanism)
2.1.2. Loosen/remove the hexagon nut -1- using socket wrench 9471.
Wheel hub on central bolts
3. Carefully press the drive shaft peg out of the wheel hub until you can move the shaft with your hand.
3.1. On vehicles without central bolts, use Universal drive shaft/wheel hub extractor as of `86 model Nr.87-1.
Pressing out drive shaft
3.2. On vehicles with central bolts , screw assembly aid 9794 (hub extension) -1- (as far as it can go) into the wheel hub. The spindle -2- must not yet touch the drive shaft. Turn the spindle -2- as required if necessary.
Central bolts: pressing out drive shaft
Turn the spindle -2- to the right. Counter at the surface -3- with an open-ended wrench (a/f 36 mm) while doing this.
Keep turning the spindle -2- until the drive shaft is pressed out of the wheel hub.
The parking-brake cable must be disengaged from the parking brake lever in the passenger compartment before the drive shaft can be removed. => Removing/fitting parking-brake cable Disengaging the parking-brake cable includes:
Removing/fitting parking-brake cable
- Undo parking-brake lever (do not operate until after fitting! Self-adjusting!)
- Open cover of oddments tray in centre console.
- Remove bottom of oddments tray in centre console.
- Disengage the relevant parking-brake cable to the side of the turnbuckle.
4. Pull protective sleeve of parking-brake cable -2- from guide tube on underbody -1-.
Pulling off protective sleeve
5. Detach both upper axle struts from the outside of the wheel bearing housing. => Upper axle struts detached
Upper axle struts detached
6. Undo the holder for the brake hose/wear indicator -arrow-.
Holder for the brake hose/wear indicator
7. Loosen connecting link for anti-roll bar -1- and spring strut -2- on the wheel bearing housing.
Removing/fitting connecting rod
8. Carefully pull wheel bearing housing outwards. Guide the parking-brake cable and remove the drive shaft (assistance of second fitter required). => Removing drive shaft
Removing drive shaft
Installing
Installing rear drive shaft
WARNING
Wheel bearing housing raised incorrectly
- Risk of squashing
- Risk of damage to components
-> Wear personal protective gear.
-> Do not raise the wheel suspension higher than the normal vehicle position (vehicle resting on wheels).
Information
- Screws are Dacromet-coated and must not be greased.
- Grease the thread of the axle nut with Optimoly HT.
- Grease the toothing of the drive shaft lightly with Optimoly HT.
- To prevent damage to the drive shaft, wheel bearing housing or transmission flange, slide a protective tube (shop-made) 00000 over the drive shaft.
- Use new screws and lock nuts.
- Observe correct tightening torques. Tighten the connecting link for the anti-roll bar in three steps (step 1: tighten to 50 Nm (37 ftlb.)/step 2: loosen by 90°/step 3: tighten to 65 Nm (48 ftlb.)). => 4201TW Tightening torques for rear axle.
- The parking brake is self-adjusting. If the basic setting of the parking brake is correct, further adjustment operations on the parking brake lever or on the turnbuckle are not necessary.
- Always check the bellows for damage and if necessary, replace them, if continuing to use the drive shaft.
1. Pull the wheel bearing housing carefully outwards and run in the drive shaft (2 fitters required). Screw on axle nuts. Use protection for drive shaft.
2. Fit the two upper control arms on the external wheel bearing housing.
3. Slide the protective sleeve of the parking-brake cable -2- on the underbody onto the guide tube -1-. Ensure it is seated correctly!
Push on protective sleeve
4. Engage brake cable in the turnbuckle at sides. => Removing/fitting parking-brake cable Fit floor in oddments tray in the centre console.
Removing/fitting parking-brake cable
5. Fit lower spring strut, connecting rod for anti-roll bar, inner drive shaft on transmission and mount for brake hose/wear indicator.
Observe the anti-roll bar setting, i.e. position of connecting link (suspension/stabiliser) on anti-roll bar, on 911 GT vehicles!
Adjustable rear stabiliser, 911 GT
Rear anti-roll bar setting: Position 2 or 3 , depending on model year and anti-roll bar diameter/March 2010.
Figure shows position -2-.
For adjustment details, please refer to the main information "Adjustment values for suspension alignment", section on "Anti-roll bar setting".
=> 4400TW Adjustment values for suspension alignment.
Any changes and additional information will only be included and updated in this main information.
6. Remove protection for drive shaft -arrow-.
Protection for drive shaft
7. Check parking brake adjustment and adjust if necessary. => 468316 Adjusting the brake shoe
Subsequent work
1. Secure the drive shaft at the wheel hub. Use a new lock nut and tighten to 460 Nm (340 ftlb.). When tightening, get another mechanic to help by operating the brake.
2. On vehicles with central bolts, check the lockable wheel bolt (locking mechanism) and wheel bolt for damage. Then, insert the lockable wheel bolt into the wheel hub.
2.1. Check that the toothed locking pin is not stiff. After pressing the pin into its cartridge, it must return to its original position with force and without catching.
Lockable wheel bolt (locking mechanism)
Replace the lockable wheel bolt(s) if they are damaged or if you have any doubts.
The toothing on the locking pin must not be damaged.
2.2. Check the wheel bolt for damage. There must be no scratches or cracks on the conical area, trapezoidal thread and inner toothing on the bolt. Replace the wheel bolt if it is damaged or if you have any doubts.
Before screwing on the wheel bolt, check that the lockable wheel bolt (locking mechanism) is engaged (the locking mechanism must be in the wheel hub).
Wheel bolt (central bolt)
3. Fit the relevant rear wheel.
=> 440519 Removing and installing wheel.
=> 440519 Removing and installing wheel with central bolt.
Checking wheel-alignment values
Check wheel alignment values and adjust if necessary.=> 449503 Performing front and rear suspension alignment