SECTION 3D - REAR SUSPENSION
Service Precaution
Diagnosis
Coil Spring
Coil Spring and Associated Parts
Removal
Inspection and Repair
Installation
Shock Absorber
Shock Absorber and Associated Parts
Removal
Inspection and Repair
Installation
Trailing Link
Trailing Link and Associated Parts
Removal
Inspection and Repair
Installation
Upper Link
Upper Link and Associated Parts
Removal
Inspection and Repair
Installation
Lateral Rod
Lateral Rod and Associated Parts
Removal
Inspection and Repair
Installation
Stabilizer Bar
Stabilizer Bar and Associated Parts
Removal
Inspection and Repair
Installation
Main Data and Specifications
Special Tools
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE
SRS COMPONENTS OR THE SRS WIRING, REFER
TO THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN
POSSIBLE AIR BAG DEPLOYMENT, PERSONAL
INJURY, OR OTHERWISE UNNEEDED SRS SYSTEM
REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or
other corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping f or ce, and may dama ge the fastener . Wh en
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts
and systems.
Diagnosis
Condition Possible cause Correction
Vehicle Pulls Mismatched or uneven tires. Replace tire.
Tires not adequately inflated. Adjust tire pressure.
Broken or sagging springs. Replace spring.
Radial tire lateral force. Replace tire.
Improper wheel alignment. Adjust wheel alignment.
Brake dragging in one wheel. Repair brake.
Loose, bent or broken front or rear
suspension parts. Tighten or replace the appropriate
suspension part(s).
Faulty shock absorbers. Replace shock absorber.
Parts in power steering valve
defective. Replace power steering unit.
Abnormal or Excessive Tire Wear Sagging or broken spring. Replace spring.
Tire out of balance. Balance or replace tire.
Improper wheel alignment. Check front end alignment.
Faulty shock absorber. Replace shock absorber.
Hard driving. Replace tire.
Overloaded vehicle. Replace tire and reduce load.
Tires not rotated periodically. Replace or rotate tire.
W orn or loose road wheel bearings. Replace wheel bearing.
Wobbly wheel or tires. Replace wheel or tire.
Tires not adequately inflated. Adjust the pressure.
Wheel Hop Blister or bump on tire. Replace tire.
Improper shock absorber operation. Replace shock absorber.
Shimmy, Shake or Vibration Tire or wheel out of balance. Balance wheels or replace tire/or
wheel.
Loose wheel bearings. Replace wheel bearing.
Worn steering linkage ball joints. Replace ball joints.
Worn upper or lower end ball joints. Replace ball joints.
Excessive wheel runout. Repair or replace wheel and/or tire.
Blister or bump on tire. Replace tire.
Excessive loaded radial runout of
tire/wheel assembly. Replace tire or wheel.
Improper wheel alignment. Check wheel alignment.
Loose or worn steering linkage. Tighten or replace steering linkage.
Loose steering unit. Tighten steering unit.
Tires not adequately inflated. Adjust tire pressure.
Loose, bent or broken front or rear
suspension parts. Tighten or replace the appropriate
suspension parts.
Faulty shock absorber. Replace shock absorber.
Hub bearing preload misadjustment. Adjust preload.
Parts in power steering valve
defective. Replace power steering unit.
Hard Steering Bind in steering linkage ball studs,
upper or lower ball joint. Replace ball joint.
Improper wheel alignment. Check wheel alignment.
Tire not adequately inflated. Inflate tires to proper pressure.
Bind in steering column or shaft. Repair or replace.
Improper power steering system
operation. Repair or replace. Refer to Steering
section.
Too Much Play In Steering Wheel bearings worn. Replace wheel bearings.
Loose steering unit or linkage. Retighten or repair.
W orn or loose steering shaft
universal joint. Retighten or replace steering shaft.
Worn steering linkage ball joints. Replace ball joints.
Worn upper or lower end ball joints. Replace ball joints.
Poor Steering Wheel Returnability Bind in steering linkage ball joints. Replace ball joints.
Bind in upper or lower ball joints. Replace ball joints.
Bind in steering column and shaft. Repair or replace.
Bind in steering gear. Check and repair steering gear.
Improper wheel alignment. Adjust wheel alignment.
Tires not adequately inflated. Adjust pressure.
Loose steering wheel nut. Retighten.
Worn wheel bearing. Replace.
Abnormal Noise W orn, sticky or loose upper or lower
ball joint, steering linkage ball joi nts
or drive axle joints.
Replace.
Faulty shock absorbers. Replace.
W orn upper or lower control arm
bushing. Replace.
Loose stabilizer bar. Retighten bolts or replace bushings.
Loose wheel nuts. Tighten nuts. Check for elongated
wheel nut holes. Replace wheel if
required.
Loose suspension bolts or nuts. Retighten suspension bolts or nuts.
Broken or otherwise damaged wheel
bearings. Replace wheel bearing.
Broken suspension springs. Replace spring.
Loose steering unit. Retighten mounting bolt.
Faulty steering unit. Replace steering unit.
Wandering or Poor Steering Stability Mismatched or unevenly worn tires. Replace tire or inflate tires to proper
pressure.
Loose steering linkage ball joints. Replace ball joints.
Faulty shock absorbers. Replace shock absorber.
Loose stabilizer bar. Tighten or replace stabilizer bar or
bushings.
Broken or sagging springs. Replace spring (pairs).
Improper wheel alignment. Adjust wheel alignment.
Condition Possible cause Correction
Erratic Steering When Braking W orn wheel bearings. Replace wheel bearings.
Broken or sagging springs. Replace spring (pairs).
Leaking caliper. Repair or replace caliper.
Warped discs. Replace brake disc.
Badly worn brake pads. Replace brake pads.
Tires are inflated unequally. Inflate tires to proper pressure.
Low or Uneven Trim Height Broken or sagging springs. Replace springs (In pairs).
Vehicle overloaded. Reduce load.
Incorrect springs. Adjust or replace torsion bar.
Suspension Bottoms Vehicle overloaded. Reduce load.
Faulty shock absorber. Replace shock absorber.
Incorrect, broken or sagging springs. Replace springs.
Body Leans Loose stabilizer bar. Tighten stabilizer bar bolts or
replac e bushings.
Faulty shock absorb er, struts or
mounting. Replace shock absorber.
Broken or sagging springs. Replace springs (In pairs).
Vehicle overloaded. Reduce load.
Cupped Tires Worn wheel bearings. Replace wheel bearing.
Excessive tire or wheel run out. Replace tire or wheel.
Worn ball joints. Replace ball joints.
Tire out of balance. Adjust tire balance.
Condition Possible cause Correction
Coil Spring
Coil Spring and Associated Parts
460RW034
Legend
EndOFCallout
Removal
1.Raise the vehicle and support the frame with
suitable safety stands.
2.Support the rear axle case with a jack.
3.Disconnect brake hose at the crossmember.
4.Remove breather hose.
5.Remove upper link fixing bolt, nut and rubber plate
on the rear axle case (left-side only).
6.Disconnect the stabilizer bar at the stabilizer link.
7.Remove the shock absorber from the axle case.
8.Remove spring insulator.
9.Remove the insulator and coil spring while lowering
the rear axle case.
CAUTION: Be sure not to let the brake hose,
parking brake cable, and breather hose extend to
their full length.
(1) Stabilizer Bar
(2) Upper Link Fixing Bolt and Nut
(3) Rubber Plate
(4) Coil Spring
(5) Insulator
(6) Shock Absorbar
(7) B reath er Hose
Inspection and Repair
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
Check the following parts:
• Coil spring
• Insulator
Installation
1. Install coil spring and make sure that the coil spring
is installed in the proper position. Paint mark(1)
should be downward.
460RW001
2. Fit the end of the coil spring to the coil spring seat
and mount the coil spring on the rear axle case.
460RW004
3. Install the insulator on the coil spring. Jack up the
axle case gently with the top of the coil spring set to
the spring seat on the frame side.
460RW013
4. Install shock absorber and tighten the nut lightly,
then retighten it to the specified torque after the
vehicle is at curb height.
NO TE: When mounting shock absorber, be sure not to
use grease on bushings or any other nearby part.
Torque: 78N·m (8.0kg·m/58lbft)
5. Install stabilizer bar.
Torque: 31N·m (3.2kg·m/23lbft)
6. Install upper link with rubber plate and tighten fixing
bolt.
Torque: 137N·m (14.0kg·m/101lbft)
7. Install breather hose.
8. Connect brake hose and bleed the brake system.
Refer to Bleeding the Brake Hydraulic System in
Brake section.
Shock Absorber
Shock Absorber and Associated Parts
461RW001
Legend
EndOFCallout
Removal
1. Remove shock absorber fixing nut, bush and washer
(upper side).
2. Remove shock absorber fixing nut and washer
(lower side).
3. Remove shock absorber.
Inspection and Repair
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
Check the following parts:
• Shock absorber
•Rubber bushing
NO TE: When mounting rubber bushings, be sure not to
use grease on bushings or any other nearby part.
Installation
1. Install shock absorber. When mounting shock
absorber, be sure not to use grease on bushings or
any other nearby part.
2. Install nut and washer (lower side), then tighten the
nut lightly. Retighten to the bolt and nut specified
torque after the vehicle is at curb height.
Torque: 78N·m (8.0kg·m/58lbft)
3. Install nut, bush and washer (upper side), then
tighten the nut lightly. Retighten to the nut specified
torque after the vehicle is at curb height.
Torque: 20N·m (2.0kg·m/14lbft)
(1) Nut, Bush and Washer
(2) Shock Absorber (3) Nut and Washer
Trailing Link
Trailing Link and Associated Parts
460RW038
Legend
EndOFCallout
Removal
1. Remove the parking brake cable from the trailing
link.
2. Remov e the trailing link fixing bolt, nut and protector .
3. Remove trailing link.
Inspection and Repair
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
1. Trailing link
2. Rubber bushing
• Remove the rubber bushing by using remover 5–
8840–2298–0.
901RW280
(1) Bolt and Nut (Axle side)
(2) Protector (Left side only) (3) Bolt (Frame side)
•Install the rubber bushing by using installer 5–
8840–2298–0.
NOTE: When mounting rubber bushings, be sure not to
use grease on bushings or any other nearby part.
901RW281
Installation
1.Install trailing link. Make sure that the trailing link is
in its correct position.
NOTE: When mounting trailing link, be sure not to use
grease on bushings or any other nearby part.
460RW011
2.Install bolt, nut and protector. Tighten the bolts and
nuts lightly, then retighten them to the specified
torque after the vehicle is at curb height.
Torque: 137N·m (14.0kg·m/101lbft)
3.Install parking brake cable.
CAUTION: The parking brake cable should not be
overstrained or slackened.
Upper Link
Upper Link and Associated Parts
460RW037-1
Legend
EndOFCallout
Removal
1. Remove fuel tank. Refer to Engine Fuel in Engine
section.
2. Remov e the speed sensor cable from the upper link.
3. Remove bolt, nut, rubber plate and protector.
4. Remove upper link.
Inspection and Repair
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
1. Upper link
2. Rubber bushing
• Remove the rubber bushing by using remover 5–
8840–2565–0.
901RW282
(1) Bolt and Nut (Axle side)
(2) Rubber Plate
(3) Upper Link
(4) Protector (Left side only)
(5) Bolt (Frame side)
• Install the rubber bushing by using to installer 5–
8840–2565–0.
NO TE: When mounting rubber bushings, be sure not to
use grease on bushings or any other nearby part.
901RW283
Installation
1. Install upper link. Make sure that the upper link is in
its correct position.
NOTE: When mounting upper link, be sure not to use
grease bushings or any other nearby part.
460RW012
2. Install bolt, nut, rubber plate and protector. Tighten
the bolts and nuts lightly, then retighten them to the
specified torque after the vehicle is at curb height.
Torque: 137N·m (14.0kg·m/101lbft)
3. Install speed sensor cable.
4. Install fuel tank.
Lateral Rod
Lateral Rod and Associated Parts
460RW036
Legend
EndOFCallout
Removal
1. Remove nut and washer.
2. Remove bolt and nut.
3. Remove lateral rod.
Inspection and Repair
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
1. Lateral rod
2. Rubber bushing (Frame side)
• Remove the rubber bushing (Frame side) by
using remover 5–8840–2299–0.
901RW284
(1) Bolt and Nut (Frame side)
(2) Lateral Rod (3) Nut and Washer (Axle side)
• Install the rubber bushing (Frame side) by using
Installe r 5–8840–2299–0 .
NOTE: When mounting rubber bushings, do not use
grease on bushings or any other nearby parts.
901RW285
3. Rubber bushing (Axle side)
• Remove the rubber bushing (Axle side) by using
remover 5–8 840– 232 7–0 .
901RW287
• Install the rubber bushing (Axle side) by using
installer 5–8840–2327–0.
901RW286
Installation
1. Install lateral rod and make sure that the lateral rod
is in its correct position.
NO TE: When mounting lateral rod, be sure not to use
grease on bushings or any other nearby part.
460RW035
Legend
EndOFCallout
2. Install bolt and nut. Tighten the bolt and nut lightly,
then retighten them to the specified torque after the
vehicle is at curb height.
Torque: 137N·m (14.0kg·m/101lbft)
3. Install nut and washer. Tighten the nut lightly, then
retighten the nut to the specified torque after the
vehicle is at curb height.
Torque: 78N·m (8.0kg·m/58lbft)
(1) Frame Side
(2) Axle Side
Stabilizer Bar
Stabilizer Bar and Associated Parts
460RW009
Legend
EndOFCallout
Removal
1.Raise the vehicle and support the frame with
suitable safety stands.
2.Remove wheel and tire assembly. Refer to Wheel in
this section.
3.Remove bolt and nut.
4.Remove link.
CAUTION: Be careful not to damage the ball joint
boot.
5. Remove bracket.
6. Re move rubber bu sh ing .
Inspection and Repair
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
Check the following parts:
• Stabilizer bar
• Rubber bushing
•Link
(1) Bracket
(2) Link
(3) Bolt and Nut
(4) Stabilizer Bar
(5) Rubber Bushing
Installation
1. Install rubber bushing.
2. Install bracket to axle housing and tighten to the
specified torque.
Torque: 25N·m (2.5kg·m/19lbft)
3. Install link.
4. Install bolt and nut, then tighten the nut to the
specified torque.
Torque: 31N·m (3.2kg·m/27lbft)
460RW010
Main Data and Specifications
General Specifications
Rear suspension Type 5–Link, coil spring type with stabilizer bar.
Coil spring Long wheel base Short wheel base
Free length 379.0mm (14.92in) 383.0mm (15.08in)
Spring diameter 12.4mm (0.49in) 12.5mm (0.49in)
Coil diameter (inner) 105mm (4.13in) 105mm (4.13in)
Effective No. of turns 5.62 6.59
Total No. of turns 7.12 8.09
Shock absorber Type Hydraulic, double acting, telescopic
Piston diameter 30mm (1.18in)
Stroke 175mm (6.89in)
Extended length 473.5mm (18.64in)
Compressed length 298.5mm (11.75in)
Stabilizer bar Diameter 19mm (0.75in)
Torque Specifications
E03RX007
Special Tools
ILLUSTRATION TOOL NO.
TOOL NAME
5–8840–2298–0
(J–39214)
Remover and Installer;
Trailing link bushing
5–8840–2565–0
(J–43008)
Remover and Installer;
Upper link bushing
5–8840–2327–0
(J–39792)
Remover and Installer;
Lateral rod bushing (axle
side)
5–8840–2299–0
(J–3921)
Remover and Installer;
Lateral rod bushing