Isuzu Trooper (1998-2002 year). Service manual — part 98
DIFFERENTIAL (FRONT)
4A1–22
4. Remove the cross pin, using a soft metal rod and a
hammer.
425RS043
5. Remove pinion gear.
6. Remove side gear.
7. Remove thrust washer.
Inspection and Repair
Make necessary correction or parts replacement if wear,
damage, corrosion or any other abnormal conditions are
found through inspection.
Check the following parts:
1. Ring gear, pinion gear
2. Bearing
3. Side gear, pinion gear, cross pin
4. Differential cage, carrier
5. Thrust washer
6. Oil seal
Ring gear replacement:
1. The ring gear should always be replaced with the
drive pinion as a set.
2. Clean the ring gear threaded holes to remove the
locking agent.
3. When installing the ring gear, apply LOCTITE 271 or
equivalent to all the threaded area and half of the
unthreaded area of the bolt.
4. Discard used bolts and install new ones.
Torque: 108 N·m (11kg·m/80 lb ft)
5. Tighten the fixing bolts in a diagonal sequence as
illustrated.
415RS016
Clearance between the differential pinion
and the cross pin measurement:
Standard: 0.06 – 0.12 mm (0.002–0.005 in)
Limit: 0.2 mm (0.008 in)
425RS045
4A1–23
DIFFERENTIAL (FRONT)
Clearance between the side gear and the
differential box:
Standard: 0.03–0.10 mm (0.001–0.004 in)
Limit: 0.15 mm(0.006 in)
425RS046
Legend
(1) Side Gear
(2) Differential Box
Play in splines between the side gear and
the axle shaft:
Standard: 0.08–0.36 mm(0.003 –0.014 in)
Limit:0.5m (0.02 in)
425RS047
Reassembly
1. Install thrust washer.
2. Install side gear.
3. Install the pinion gear by engaging it with the side
gears while turning both pinion gears simultaneously
in the same direction.
425RS048
4. Install cross pin.
1. Be sure to install the cross pin so that it is in
alignment with the lock pin hole in the differential
cage.
425RS049
2. Adjust the backlash between the side gear and
the pinion gear.
Backlash:0.03 – 0.08 mm (0.001– 0.003 in)
DIFFERENTIAL (FRONT)
4A1–24
Thickness of thrust washers available:
1.00 mm, 1.05 mm, 1.10 mm (0.039 in, 0.041 in,
0.043 in)
425RS050
5. Install lock pin. After lock pin installation, stake the
cage to secure the lock pin.
425RS051
Legend
(1) Staked Portion
(2) Lock Pin
6. Clean the ring gear threaded holes to remove the
locking agent. When installing the ring gear, apply
LOCTITE 271 or equivalent to all the threaded area
and half of the unthreaded area of the bolt.
7. Tighten the bolts in diagonal sequence as illustrated.
Torque: 108 N·m (11kg·m/80 lb ft)
NOTE: Discard used bolts and install new ones.
415RS016
4A1–25
DIFFERENTIAL (FRONT)
Main Data and Specifications
General Specifications
Axle tube Type
It consists of the duct, a cast iron housing and the axle
tube.
Gear type
Hypoid
Gear ratio
(to 1)
4.100(6VE1)
4.300(4JX1, 6VE1)
4.555(4JG2–TC, 6VD1)
4.777(4JG2)
Differential type
Two pinion
Oil capacity
liter (Imp qt/US
qt)
1.4 (1.2/1.5) (Differential)
0.12 (0.11/0.13) (Actuator Housing: Shift on the fly)
Type of lubricant
75W–90 GL–5 (Multi grade type)
Refer to General Information
Axle shaft type
Constant velocity joint
(Birfield joint type and double offset joint)
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