Range Rover Classic. Manual — part 84
47
PROPELLER SHAFTS
4
REPAIR
REAR PROPELLER SHAFT
Service repair no - 47.15.03
NOTE: SGF rubber coupling should be left
attached to propeller shaft. Only remove
coupling from propeller shaft if
replacement is required.
Remove
1. Scribe alignment marks on flanges at both ends
of propeller shaft to ensure correct refitting.
2. Remove three nuts and bolts securing flexible
coupling to axle flange.
3. Remove nuts securing propeller shaft flange to
transfer gearbox.
4. Raise propeller shaft at gearbox end detach
coupling from spigot at differential and withdraw
shaft.
NOTE: For replacement of spigot (pinion
flange centralising peg).
See REAR AXLE
AND FINAL DRIVE, Overhaul, Axle
Differential Assembly
Overhaul
Service repair no - 47.15.12
NOTE: Refer to front propeller shaft
overhaul procedure for gearbox end of
shaft. The SGF rubber coupling is a
non-serviceable item.
Refit
5. Locate flexible coupling over spigot, align
scribed marks and secure at transfer gearbox.
Tighten to
47 Nm.
6. Secure flexible coupling to axle flange with three
nuts and bolts and Tighten to
78 Nm.
FLEXIBLE COUPLING
NOTE: Flexible coupling should only be
removed if a new coupling is to be fitted.
Remove
1. Remove rear propeller shaft.
See Rear
Propeller Shaft
2. Remove nuts and bolts securing flexible
coupling to propeller shaft.
Refit
3. Reverse removal procedure. Fit nuts and bolts.
Tighten to
78 Nm.
REAR AXLE AND FINAL DRIVE
1
DESCRIPTION AND OPERATION
DESCRIPTION
The welded steel rear axle casing houses a separate
spiral bevel type differential unit, which is off set to the
right of the vehicle centre line. The differential unit
drives the rear wheels via the axle shafts and fully
floating hubs which are mounted on tapered roller
bearings.
Lubrication
The differential is lubricated with oil and the hub
bearings with grease. The hub bearings are fitted
with inner and outer seals. The outer seals prevent
the differential oil mixing with the hub grease and the
inner seals prevent dirt ingress into the hub.
Ventilation
Ventilation of the hub bearings is through the outer oil
seals and the differential ventilation pipe, which
terminates at a high level.
The wheel hubs on axles with ABS brakes share the
same construction to non ABS axles except for the
addition of a sensor ring 11 on the brake disc 10.
Rear axle hub
1. Axle casing
2. Ventilation pipe
3. Axle shaft
4. Wheel studs and hub
5. Wheel bearing stub axle
6. Wheel bearings (2)
7. Inner hub seal
8. Outer hub/axle shaft seal
9. Hub lock plate, thrust washer and nuts (2)
10. Brake disc
11. Sensor ring, ABS
REAR AXLE AND FINAL DRIVE
1
FAULT DIAGNOSIS
FAULT DIAGNOSIS
Complaint - Oil leaks
An external leak of lubrication from the hub seals can
be caused by a faulty internal seal. For example, if the
internal seals which separate the differential from the
hubs are faulty and the vehicle is operating or parked
on an embankment. Oil from the differential may flood
one hub causing a leak and leave the differential
lacking lubrication.
When a seal is found to be leaking check the axle
ventilation system, as a blockage can cause internal
pressure to force oil past the seals.
See ’Description and Operation’ for illustrations of oil
seal locations.
When investigating hub seal leaks check the grease
for dilution with oil. Check also the differential level
and oil for metal particles and the condition of internal
seals.
If the vehicle is driven in deep water with defective oil
seals, water may contaminate the lubricants and raise
the differential level giving a false impression that the
housing has been overfilled with oil.
Do not assume that a high oil level in the
differential is due to over filling or, that a low level
is because of an external leak.
REAR AXLE AND FINAL DRIVE
1
REPAIR
REAR AXLE
Service repair no - 51.25.01
Remove
WARNING: Remove and refit of axle
requires a further two persons to steady
the axle when lowering or repositioning
axle.
1. Drain brake system.
2. Support chassis rear.
3. Remove road wheels.
4. Support axle weight with hydraulic jack.
5. Disconnect ABS wiring harness multi-plug at
jump hose bracket, if applicable.
6. Disconnect shock absorbers.
7. Disconnect flexible brake hose at connection
under floor.
8. Disconnect lower links at axle.
9. Mark differential and propeller shaft flanges with
identification marks for assembly. Remove four
nuts and bolts. Lower propeller shaft and tie to
one side.
10. Disconnect pivot bracket ball joint at axle
bracket.
11. Release bolts and remove coil spring retaining
plates.
12. Lower axle and remove road springs.
13. Disconnect anti-roll[sway] bar links to axle.
See
REAR SUSPENSION, Repair, Anti-Roll[Sway]
Bar Ball Joint Links
14. Remove axle assembly.
Refit
15. Position axle and fit lower links. Tighten to
176
Nm
16. Reverse removal procedure.
17. Tighten pivot bracket ball joint to axle to
176 Nm.
18. Tighten propeller shaft to differential drive flange
to
47 Nm
19. Bleed brake system.
See BRAKES, Repair,
Brake System Bleed
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