1996 LAND ROVER DEFENDER Workshop Manual

51REAR AXLE AND FINAL DRIVE
12
OVERHAUL REAR STUB AXLE - 90
Service repair no - 64.15.22.
STUB AXLE COMPONENTS
1.Stub axle to axle casing bolt.
2.Mudshield.
3.Stub axle.
4.Stub axle joint washer.
5.Axle case.Overhaul
1.Remove hub assembly
See Repair, Rear hub
assembly
.
2.Remove 6 bolts from stub axle to axle casing.
3.Remove mudshield.
4.Remove stub axle and joint washer.
Renew rear stub axle oil seal
5.Remove and discard oil seal. Lubricate seal and
lip with EP90 oil. Using special toolLRT-51-004
(LST 138)fit new oil seal lip side trailing so that
seal is flush with rear face of stub axle.
Refit
6.Fit new joint washer, stub axle and mudshield
bolts. Tighten bolts to
65 Nm (48 lbf/ft).
7.Refit hub assemblySee Repair, Rear Hub
Assembly
.

REAR AXLE AND FINAL DRIVE
13
OVERHAUL REAR HUB - 110/130
Service repair no - 64.15.14.
Overhaul
1.Remove rear hub assembly
See Repair, Rear
hub assembly.
2.Remove outer bearing.
3.Mark, for reassembly, relationship between hub
and brake disc, if original hub is to be refitted.
4.Remove 5 bolts and separate hub from brake
disc.
5.Drift out grease seal and inner bearing from hub
and discard seal.
HUB COMPONENTS
1.Dust cap.
2.Drive shaft circlip.
3.Drive member.
4.Drive member joint washer.
5.Drive member retaining bolt.
6.Lock nut.
7.Lock washer.
8.Hub adjusting nut.9.Spacing washer.
10.Outer bearing.
11.Hub.
12.Inner bearing.
13.Grease seal.
14.Brake disc.
15.Disc retaining bolt.

51REAR AXLE AND FINAL DRIVE
14
OVERHAUL
6.Drift out inner and outer bearing tracks.
7.Clean hub and drift in inner and outer bearing
tracks.
8.Pack hub inner bearing with recommended
grease and fit to hub.
9.With lip side leading, fit new seal to hub using
special toolLRT-54-003(LST 137) seal replacer
and drift18G 134. Drive in seal flush with rear
face of hub. Apply grease between seal lips.10.Fit brake disc to hub, lining up to marks made
during dismantling. apllying Loctite 270, fit
retaining bolts. Tighten to
73 Nm (54 lbf/ft).
11.Grease and fit outer bearing to hub.
12.Fit hub assembly
See Repair, Rear hub
assembly
.

REAR AXLE AND FINAL DRIVE
15
OVERHAUL REAR STUB AXLE - 110/130
Service repair no - 64.15.22
STUB AXLE COMPONENTS
1.Rear axle shaft
2.Stub axle to axle casing bolt
3.Mudshield
4.Stub axle
5.Stub axle joint washer
6.Axle caseOverhaul
1.Remove hub assembly
See Repair, Rear hub
assembly
.
2.Remove 6 bolts from stub axle to axle casing.
3.Remove mudshield.
4.Remove stub axle and joint washer.
5.Remove rear axle shaft from axle casing.
Renew rear stub axle oil seal
6.Remove and discard oil seal. Lubricate seal and
lip EP90 oil. Using special toolLRT-51-004
(LST138) fit new seal lipside trailing so that seal
is flush with rear face of stub axle.
Refit
7.Fit new joint washer, stub axle and mudshield.
Tighten bolts to
65 Nm (48 lbf/ft).
8.Fit rear axle shaft, avoid damaging stub axle
seal.
9.Refit hub assembly
See Repair, Rear hub
assembly
.

REAR AXLE AND FINAL DRIVE
1
SPECIFICATIONS, TORQUE REV: 05/99 TORQUE VALUES
NOTE: Torque wrenches should be regularly checked for accuracy to ensure that all fixings are
tightened to the correct torque.
Nm
REAR AXLE
Pinion housing to axle case 41.......................................................................
Crown wheel to differential case 58................................................................
Differential bearing cap to pinion housing 90..................................................
Differential drive flange to drive shaft 47.........................................................
Bevel pinion nut 129........................................................................................
Lower link to axle 176......................................................................................
Pivot bracket ball joint to axle 176...................................................................

FRONT AXLE AND FINAL DRIVE
1
DESCRIPTION AND OPERATION DESCRIPTION
The welded steel front 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 front wheels via the axle shafts and
constant velocity joints which are totally enclosed in
the spherical and swivel housings.The front wheels are pivoted on tape roller bearings at
the top and bottom of the swivel housing. The wheel
hubs on all axles are supported by two taper bearings
and driven by drive flanges which are splined to the
one piece, stub shaft/constant velocity joint.
Front axle hub and swivel housing
1.Axle casing
2.Ventilation pipe
3.Axle shaft
4.Wheel studs and hub
5.Stub axle
6.Wheel bearings
7.Inner and outer hub seals
8.Axle shaft seal
9.Hub lock plate, thrust washer and nuts
10.Brake disc
11.Drive flange
12.Shim washer and circlip13.Dust cap
14.Constant velocity joint/shaft
15.Thrust collar for CV joint
16.Roller bearing
17.Spacer
18.Circlip
19.Top and bottom swivel taper bearing
20.Top and bottom swivel pins
21.Spherical housing, seal and retainer
22.Swivel housing
23.Constant velocity shaft seal

54FRONT AXLE AND FINAL DRIVE
2
DESCRIPTION AND OPERATION Lubrication
The differential, swivel pin housing and wheel hubs
are indiviudally lubricated and separated by oil seals
(7) and (8), see J6267A, to prevent oil transfer across
the axle when the vehicle is traversing steep inclines.
The wheel bearings are lubricated with grease and the
swivel housing and differential with oil. On later
vehicles, identified by having only a filler plug in the
swivel housing, grease is used to lubricate the
housing assembly,
Ventilation
Ventilation of the differential is through a plastic pipe
(2) which terminates at a high level in the vehicle axle.
The swivel housings ventilate through axle shaft oil
seals (8) into the differential and the hub bearings
vent via the oil seals into the swivel housing.

FRONT AXLE AND FINAL DRIVE
1
FAULT DIAGNOSIS FAULT DIAGNOSIS
Complaint - Oil leaks
An external leak of lubrication can be caused by a
faulty internal seal. For example, if the seals which
separate the differential from the swivel housings are
faulty and the vehicle is operating or parked on an
embankment, oil may leak across the axle leaving one
swivel with a high level and the opposite swivel and
differential lacking lubrication.
See 'Description and Operation' for illustrations of oil
seal locations.
When investigating leaks or checking oil levels, it is
essential that all the lubrication is drained from any
housing with a high level and that the other levels are
checked.
Swivel oil should be checked for signs of grease
leaking from the hub bearings and oil contamination of
the hub grease.
Check that the axle ventilation system is clear, as a
blockage can cause internal pressure to force oil past
the seals.
If the vehicle is driven in deep water with defective oil
seals, water may contaminate the lubricants and when
checked, give a false impression that the housing has
been overfilled with oil.
Do not assume that a high oil level is due to over
filling or, that a low level is because of an external
leak.