1997 ISUZU TFS SERIES service

REAR AXLE 4B-19
Important Operations
Before disassembling, make a pattern check using the method
described later in this section under "Gear Tooth Contact
Pattern Check and Adjustments". This check will help
determine what service should be performaed on the
differential components.
On some bench operations, it may be advantageous to use a
holding fixture and a holding fixture base.
Tool 5-8840-0275-0 (J-37264) and 5-8840-0003-0 (J-3289-20)
are available tools that work well for this purpose.
1. Bearing Cap
Apply an alignment mark to the side bearing cap and
differential carrier.
2. Side Bearing Outer Race
After removal, keep the right and left side bearing assemblies
separate to maintain inner and outer race combinations.
4. Side Bearing
5. Backlash and Side Bearing Preload Adjusting Shim
Remover : 5-8840-0013-0 (J-22888)
Adapter : 9-8521-1743-0 (J-8107-2) (194 mm)
5-8840-2196-0 (J-8107-4) (220 mm)
Carefully record the thickness of each side bearing and each
shim pack. Keep them separated and in order for later
reassembly.
6. Flange nut and washer (194 mm)
Holder : 5-8840-0133-0
(J-8614-01)

REAR AXLE 4B-63
SPECIAL SERVICE TOOL
ITEM NO. ILLUSTRATION PART NO. PART NAME
RAL-1
5-8840-2003-0
(J-24246)Axle shaft bearing nut
remover & installer
RAL-25-8840-2329-0Axle shaft bearing nut
remover & installer
(Heavy-Duty type)
RAL-3
5-8840-0079-0
(J-6627-A) Wheel pin remover
RAL-4
5-8522-1268-0
(J-24259)Axle shaft bearing outer
race installer (for 194mm)
5-8840-2201-0 194mm (H/D), 220mm
OTL-1
5-8840-0007-0
(J-8092) Driver handle
RAL-35
9-8522-1269-0
(J-24255)Bearing holder oil seal
installer (for 194mm)
RAL-115-8840-2202-0Bearing holder oil seal
installer (for 194mm H/D,
220mm)
RAL-6
9-8522-1271-0
(J-8609-01) Axle shaft bearing installer

4C1-50 FRONT WHEEL DRIVE
INSPECTION AND REPAIR
Make necessary correction or parts replacement if wear, damage or any other abnormal conditions are found
through inspection.
For inspection and servicing of disc caliper, and relative parts, refer to Section 5 “Service Brakes”.
Hub
Hub bearing, oil seal
Knuckle spindle
Disc
Caliper
Free wheeling hub parts
(Option)
Clutch, knob, follower, inner, ring and
spring
Visual Check
Check the following parts for wear, damage or other abnormal
conditions.

FRONT WHEEL DRIVE 4C1-57
INSPECTION AND REPAIR
Make necessary correction or parts replacement if wear, damage or any other abnormal conditions are found
through inspection.
For inspection and servicing of disc caliper, and relative parts, refer to Section 5 “Service Brakes”.
Hub
Hub bearing, oil seal
Knuckle spindle
Disc
Caliper
Automatic locking hubs
Visual Check
Check the following parts for wear, damage or other abnormal
conditions.
Inside Diameter of Housing
mm(in)
Standard Limit
65.04 (2.61) 65.24 (2.568)
Inspect flange surface A and B for excessive wear.
Drive Clutch Section Dimensions “L”
mm(in)
Standard Limit
8.2 (0.323) 7.8 (0.37)
Holdout Ring Axial Play of the Drive
Clutch Assembly
mm(in)
Standard Limit
0.3 (0.012) or less 0.4 (0.016)

4C1-68 FRONT WHEEL DRIVE
INSPECTION AND REPAIR
Make necessary correction or parts replacement if wear, damage or any other abnormal conditions are found
through inspection.
For inspection and servicing of disc caliper, and relative parts, refer to Section 5 “Service Brakes”.
Hub
Hub bearing, oil seal
Knuckle spindle
Disc
Caliper
Free wheeling hub parts
(Option)
Clutch, knob, follower, inner, ring and
spring
Visual Check
Check the following parts for wear, damage or other abnormal
conditions.

4C1-90 FRONT WHEEL DRIVE
SPECIAL SERVICE TOOL
ITEM NO. ILLUSTRATION PART NO. PART NAME
FAL-1
5-8840-0013-0
(J-22888) Side bearing puller
FAL-135-8521-0019-0Side bearing plug adapter
(for 167mm)
FAL-14
9-8521-1743-0
(J-8107-2)Side bearing plug adapter
(for 194mm)
FAL-3
5-8840-0133-0
(J-8614-01)Pinion flange holder
(167mm and 194m)
FAL-89-8521-5032-0 Final pinion spindle
FAL-10
5-8840-0015-0
(J-22912-01) Separator
FAL-11
5-8522-0048-0
(J-29038)Outer bearing outer race
installer (for 167mm)
FAL12
9-8522-1141-0
(J-24256)Outer bearing outer race
installer (for 194mm)
OTL-1
5-8840-0007-0
(J-8092) Driver handle

TFAXL-WE-981
You are requested to order this manual using the
manual number that is shown above.
This manual is applicable for vehicles in all countries
except the USA, Canada, Europe and Thailand.
All rights reserved, This manual may not be
reproduced in whole or in part, without the permission
in writing of ISUZU MOTORS LIMITED.
Issued by
ISUZU MOTORS LIMITED
INTERNATIONAL SERVICE DEPARTMENT
Tokyo, Japan
First edition May., 1998 9805-01A-4

NOTICE
Before using this Workshop Manual to assist you in performing vehicle
service and maintenance operations, it is recommended that you
carefully read and thoroughly understand the information contained in
Section - OA under the headings “GENERAL REPAIR
INSTRUCTIONS” and “HOW TO USE THIS MANUAL”.
All material contained in this Manual is based on the latest product
information available at the time of publication.
All rights are reserved to make changes at any time without prior
notice.