Page 1329 of 2000

U241E AUTOMATIC TRANSAXLE – DIFFERENTIAL CASEAX–259
AX
(b) Using SST and a hammer, tap in the case washer
and front differential case tapered roller bearing rear
outer race to the transaxle case.
SST 09950-60020 (09951-00710), 09950-70010
(09951-07100)
6. INSTALL FRONT DIFFERENTIAL CASE FRONT
TAPERED ROLLER BEARING
(a) Using SST and a press, press in the front differential
case tapered roller bearing front inner race to the
differential case.
SST 09608-06041
(b) Using SST and a hammer, tap in the front
differential case tapered roller bearing front outer
race to the transaxle housing.
SST 09950-60020 (09951-00680), 09950-70010
(09951-07100), 09950-60010 (09951-00340)
7. INSTALL FRONT DIFFERENTIAL RING GEAR
(a) Using ATF and heater, heat the front differential ring
gear to 90 to 110
C (194.0 to 230.0F).
(b) Clean the contact surface of the front differential
case.
(c) Align the matchmarks, and install the front
differential ring gear case quickly.
D025219E02
D025216E01
D025217E01
D025215E03
C083132E02
Page 1330 of 2000
AX–260U241E AUTOMATIC TRANSAXLE – DIFFERENTIAL CASE
AX
(d) Tighten the 10 bolts.
Torque: 95 N*m (969 kgf*cm, 70 ft.*lbf)
8. INSPECT TAPERED ROLLER BEARING PRELOAD
(a) Install the differential assembly to the transaxle
case.
(b) Install the transaxle housing to the transaxle case.
(c) Install the 16 bolts.
Torque: 22 N*m (224 kgf*cm, 16 ft.*lbf) for bolt A
29 N*m (296 kgf*cm, 21 ft.*lbf) for bolt B
and C
HINT:
Each bolt length is indicated below.
Bolt length:
50 mm (1.97 in.) for bolt A and B
42 mm (1.65 in.) for bolt C
(d) Using SST, turn the differential.
SST 09564-32011
(e) Using SST and torque wrench, measure the preload
of the differential.
SST 09564-32011
Torque: Standard turning torque at 60 rpm
0.20 to 0.69 N*m (2.0 to 7.0 kgf*cm, 1.8
to 6.1 in.*lbf) for new
0.10 to 0.35 N*m (1.0 to 3.6 kgf*cm, 0.9
to 3.1 in.*lbf) for used
C083133E01
C083139E01
C050259E01
C083572E01
C083572E01
Page 1331 of 2000
U241E AUTOMATIC TRANSAXLE – DIFFERENTIAL CASEAX–261
AX
Standard adjusting shim thickness
(f) Remove the 16 bolts.
(g) Using a practic-faced hammer, remove the
transaxle housing.
(h) Remove the differential.
Mark Thickness
0 1.90 mm (0.074 in.)
1 1.95 mm (0.077 in.)
2 2.00 mm (0.079 in.)
3 2.05 mm (0.081 in.)
4 2.10 mm (0.083 in.)
5 2.15 mm (0.085 in.)
6 2.20 mm (0.087 in.)
7 2.25 mm (0.089 in.)
8 2.30 mm (0.091 in.)
9 2.35 mm (0.093 in.)
A 2.40 mm (0.094 in.)
B 2.45 mm (0.096 in.)
C 2.50 mm (0.098 in.)
D 2.55 mm (0.100 in.)
E 2.60 mm (0.102 in.)
F 2.65 mm (0.104 in.)
G 2.70 mm (0.106 in.)
H 2.75 mm (0.108 in.)
J 2.80 mm (0.110 in.)
D009182E01
C083139E01
Page 1332 of 2000
AX–262U241E AUTOMATIC TRANSAXLE – DIFFERENTIAL CASE
AX
9. INSTALL TRANSAXLE HOUSING OIL SEAL
(a) Coat the lip of a new oil seal with a little amount of
MP grease.
(b) Using SST and a hammer, tap in the oil seal.
SST 09350-32014 (09351-32150), 09950-70010
(09951-07150)
10. INSTALL DIFFERENTIAL SIDE BEARING RETAINER
OIL SEAL
(a) Coat the lip of a new oil seal with a little amount of
MP grease.
(b) Using SST and a hammer, tap in the oil seal.
SST 09350-32014 (09351-32150), 09950-70010
(09951-07150)
D025606E01
D025605E01
Page 1333 of 2000
GF1A TRANSFER – ACTIVE TORQUE CONTROL 4WD SYSTEMTF–5
TF
SYSTEM DIAGRAM
C131922E02
Page 1334 of 2000

TF–6GF1A TRANSFER – ACTIVE TORQUE CONTROL 4WD SYSTEM
TF
SYSTEM DESCRIPTION
1. GENERAL DESCRIPTION
(a) The active torque control 4WD system detects the
driving conditions based on signals from each ECU,
each switch, the steering angle sensor, the wheel
speed sensor, and the yaw rate sensor. The system
controls the electronic current passing through the
linear solenoid of the electromagnetic coupling, and
performs electronic control to distribute the optimum
torque to the rear wheels.
(b) Main components and their functions.
C128585E01
Component Function
4WD Indicator Light Displays warning to driver when system malfunctions
Stop Light Switch Detects brake operation
Throttle Position Sensor Detects opening angle of throttle
Park/Neutral Position Switch Detects "P" position
Steering Angle Sensor Detects turning of steering wheel
4WD Linear Solenoid Detects electronic control limiting clutch operation using signals from
4WD control ECU
Skid Control ECU with Actuator Detects signals from each sensor and outputs them to 4WD control
ECU
4WD Control ECU Detects signals from each sensor via skid control ECU to operate
linear solenoid and control system
Crankshaft Position Sensor Detects engine rpm and inputs it into ECM
Yaw Rate Sensor Detects forward and rearward acceleration of vehicle, and inputs it into
skid control ECU
Page 1335 of 2000

GF1A TRANSFER – ACTIVE TORQUE CONTROL 4WD SYSTEMTF–7
TF2. DRIVING FUNCTION
Ambient Temperature Detects external ambient temperature and inputs it into body ECU
Electromagnetic Coupling Based on amount of current sent from 4WD control ECU, torque is
distributed to rear wheels
4WD Lock Switch Change of side auto mode for lock mode
4WD Lock Mode Indicator Light Lock mode control status is communicated to driver through indicator
light illumination
When lock mode is turned ON, indicator light blinks twice and then
remains illuminated.
When lock mode is turned OFF, indicator light turns OFF. Component Function
Vehicle Condition Status
Control at Vehicle Startup This controls the amount of sideway sliding that occurs at rear of
vehicles when accelerating from stop to improve acceleration and hill
climbing capacity
Slip Control at Vehicle Startup This helps prevent vehicle from sliding sideways. When accelerating a
stopped vehicle with the steering wheel turned, it ensures steering
stability
Slip Control This ensures high turning performance and that stability is not affected
by road surface conditions during mid and high speed running
Control During Acceleration This controls straight-line running when accelerating during mid and
high speeds to ensure straight-line stability of the vehicle
Page 1336 of 2000
TF–8GF1A TRANSFER – ACTIVE TORQUE CONTROL 4WD SYSTEM
TF
3. REFERENCE MECHANISM
(a) Electromagnetic coupling
(1) The outer part of the main clutch is attached
together with the front housing. The inner part of
the main clutch is attached together with the
shaft. The control clutch is attached together
with the control cam. The activation energy from
the transfer is transferred from the propeller
shaft to the front housing. However, when the
linear solenoid is not operating, the main clutch
and control clutch are in a free state, and the
activation energy from the transfer is not
transferred to the rear wheels.
C128591E03