1995 JEEP CHEROKEE Service Repair Manual

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Page 49 of 2198

JEEP CHEROKEE 1995 Service Repair Manual INSTALLATION
(1) Position the lower retainer and grommet on the
upper stud. Insert the shock absorber through the
shock tower hole.
(2) Install the lower bolts and nuts. Tighten nuts
to 23 Nzm (17 ft.

Page 50 of 2198

JEEP CHEROKEE 1995 Service Repair Manual YJ FRONT SUSPENSION
INDEX
page page
Leaf Spring.............................. 16
Leaf Spring Eye Bushing Replacement......... 17
Service Information........................ 15
Shock Absorber..........

YJ FRONT SUSPENSION
INDEX
page page
Leaf Spring.............................. 16
Leaf Spring Eye Bushing Replacement......... 17
Service Information........................ 15
Shock Absorber.......................... 16Spring and Shock Diagnosis................. 15
Stabilizer Bar............................ 15
Track Bar............................... 15
SERVICE INFORMATION
Periodic lubrication of the steering system and sus-
pension components is required. Refer to Group 0,
Lubrication And Maintenance for the service inter-
val.
CAUTION: Suspension components with rubber
bushings should be tightened with the vehicle at
normal height. It is important to have the springs
supporting the weight of the vehicle when the fas-
teners are torqued. If springs are not at their normal
ride position, vehicle ride comfort could be affected
and premature bushing wear may occur. Rubber
bushings must never be lubricated.
TRACK BAR
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the retaining nuts and bolts (Fig. 1)
from the axle bracket and frame bracket. Remove
track bar.
INSTALLATION
(1) Position track bar at axle shaft tube bracket.
Loosely install the retaining bolt and nut (Fig. 1).
(2) Loosely install the retaining bolt and nut at the
frame bracket.
(3) Remove support and lower vehicle.
(4) Tighten the retaining nut at the axle shaft tube
bracket to 100 Nzm (74 ft. lbs.) torque.
(5) Tighten the retaining nut at the frame bracket
to 142 Nzm (105 ft. lbs.) torque.
STABILIZER BAR
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the retaining nut from the connecting
link bolt (Fig. 2).
(3) Remove the retaining clamps from frame rails
(4) Remove the stabilizer bar.
INSTALLATION
(1) Inspect the stabilizer bar bushings (Fig. 2). Re-
place the bushings if cracked, cut, distorted, or worn.(2) Position the stabilizer bar on the frame. Install
the retaining brackets and fasteners. Tighten bolts to
41 Nzm (30 ft. lbs.) torque.
(3) Install the link upper bolts and nuts. Tighten
the nuts to 61 Nzm (45 ft. lbs.) torque.
(4) Tighten the link spring bracket nuts to 61 Nzm
(45 ft. lbs.) torque.
(5) Lower the vehicle.
SPRING AND SHOCK DIAGNOSIS
A squeak noise from the shock absorber or springs
can be produced if movement between the rubber
bushings and the metal occurs. This noise can usu-
ally be stopped by tightening the attaching nuts. If
the squeak noise persists, inspect for damaged and
worn bushings, and attaching components. Repair as
necessary if any of these conditions exist.
Fig. 1 Track Bar
JFRONT SUSPENSION AND AXLE 2 - 15

Page 51 of 2198

JEEP CHEROKEE 1995 Service Repair Manual The shock absorber bushings do not require any
type of lubrication. Do not lubricate the bushings to
reduce bushing noise. Grease or mineral oil-base lu-
bricants will deteriorate the bushing rubber.

The shock absorber bushings do not require any
type of lubrication. Do not lubricate the bushings to
reduce bushing noise. Grease or mineral oil-base lu-
bricants will deteriorate the bushing rubber.
The shock absorbers are not refillable or adjustable.
If a malfunction occurs, the shock absorber must be
replaced. To test a shock absorber, hold it in an up-
right position and force the piston into and out of the
cylinder four or five times. The action throughout
each stroke should be smooth and even.
SHOCK ABSORBER
REMOVAL
(1) Remove the nut, retainer and grommet from the
upper stud on the frame bracket (Fig. 3).
(2) Raise and support the vehicle.
(3) Remove the nut, washers and bolt from the
shock absorber lower eye (Fig.3).
(4) Remove the shock absorber.
(5) Remove the remaining grommet and retainer
from the shock absorber stud.
INSTALLATION
(1) Position the lower retainer and grommet on the
upper stud. Insert the shock absorber through the
shock tower hole.
(2) Install the lower bolts and nuts. Tighten the
nuts to 61 Nzm (45 ft. lbs.) torque.
(3) Install the upper grommet and retainer on the
stud on the frame bracket. Install the nut and tighten
to 12 Nzm (9 ft. lbs.) torque.
LEAF SPRING
REMOVAL
(1) Raise the vehicle.
(2) Support the vehicle with jack stands placed un-
der the frame.
(3) Position a hydraulic jack under the axle. Raise
the axle to relieve the axle weight from the springs.
(4) Remove the stabilizer bar links attaching nut.
(5) Remove the nuts, the U-bolts and spring
bracket from the axle.
(6) Remove the nut and bolt that attaches the
spring front eye to the shackle (Fig. 3).
(7) Remove the nut and bolt from the spring rear
eye.
(8) Remove the spring from the vehicle.
The spring can be disassembled by removing
the spring clips and the center bolt. If the
spring bushings require replacement, refer to
the bushing removal and installation proce-
dures.
INSTALLATION
(1) Position the spring front eye in the shackle.
Loosely install the attaching bolt and nut. Do not
tighten at this time.
(2) Position the rear eye in the hanger bracket.
Loosely install the attaching bolt and nut (Fig. 3). Do
not tighten at this time.
(3) Position the axle. Install the spring bracket,
U-bolts and nuts (Fig. 3). Tighten the U-bolt nuts to
122 Nzm (90 ft. lbs.) torque.
(4) Attach the stabilizer bar links.
(5) Remove the hydraulic jack.
Fig. 2 Stabilizer BarFig. 3 Spring & Shock Absorber
2 - 16 FRONT SUSPENSION AND AXLEJ

Page 52 of 2198

JEEP CHEROKEE 1995 Service Repair Manual (6) Remove the support stands and lower the vehi-
cle.
(7) Tighten the front shackle plate nut (Fig. 3) to
135 Nzm (100 ft. lbs.) torque.
(8) Tighten the rear eye bracket nut to 142 Nzm
(105 ft. lbs.)

Page 53 of 2198

JEEP CHEROKEE 1995 Service Repair Manual AXLE NOISE/VIBRATION DIAGNOSIS
INDEX
page page
Driveline Snap........................... 19
Gear and Bearing Noise.................... 18
General Information....................... 18Low Speed Knock..

AXLE NOISE/VIBRATION DIAGNOSIS
INDEX
page page
Driveline Snap........................... 19
Gear and Bearing Noise.................... 18
General Information....................... 18Low Speed Knock......................... 19
Vibration................................ 19
GENERAL INFORMATION
Axle bearing problem conditions are usually caused
by:
²Insufficient or incorrect lubricant
²Foreign matter/water contamination
²Incorrect bearing preload torque adjustment
²Incorrect backlash (to tight)
When serviced, the bearings must be cleaned thor-
oughly. They should be dried with lint-free shop tow-
els.Never dry bearings with compressed air.
This will overheat them and brinell the bearing
surfaces. This will result in noisy operation af-
ter repair.
Axle gear problem conditions are usually the result
of:
²Insufficient lubrication
²Incorrect or contaminated lubricant
²Overloading (excessive engine torque) or exceeding
vehicle weight capacity
²Incorrect clearance or backlash adjustment
Insufficient lubrication is usually the result of a
housing cover leak. It can also be from worn axle
shaft or pinion gear seals. Check for cracks or porous
areas in the housing or tubes.
Using the wrong lubricant will cause overheating
and gear failure. Gear tooth cracking and bearing
spalling are indicators of this.
Axle component breakage is most often the result
of:
²Severe overloading
²Insufficient lubricant
²Incorrect lubricant
²Improperly tightened components
Overloading occurs when towing heavier than rec-
ommended loads. Component breakage can occur
when the wheels are spun excessively. Incorrect lu-
bricant quantity contributes to breakage. Loose dif-
ferential components can also cause breakage.
Incorrect bearing preload or gear backlash will not
result in component breakage. Mis-adjustment will
produce enough noise to cause service repair before a
failure occurs. If a mis-adjustment condition is not
corrected, component failure can result.
Excessive bearing preload may not be noisy. This
condition will cause high temperature which can re-
sult in bearing failure.
GEAR AND BEARING NOISE
GEAR NOISE
Axle gear noise can be caused by insufficient lubri-
cant. Incorrect backlash, tooth contact, or worn/dam-
aged gears can cause noise.
Gear noise usually happens at a specific speed
range. The range is 30 to 40 mph, or above 50 mph.
The noise can also occur during a specific type of
driving condition. These conditions are acceleration,
deceleration, coast, or constant load.
When road testing, accelerate the vehicle to the
speed range where the noise is the greatest. Shift
out-of-gear and coast through the peak-noise range.
If the noise stops or changes greatly, check for insuf-
ficient lubricant. Incorrect ring gear backlash, or
gear damage can cause noise changes.
Differential side and pinion gears can be checked
by turning the vehicle. They usually do not cause
noise in straight-ahead driving. These gears are
loaded during vehicle turns. If noise does occur dur-
ing vehicle turns, the side or pinion gears could be
worn or damaged. A worn pinion gear mate shaft can
also cause a snapping or a knocking noise.
BEARING NOISE
The axle shaft, differential and pinion gear bear-
ings can all produce noise when worn or damaged.
Bearing noise can be either a whining, or a growling
sound.
Pinion gear bearings have a constant-pitch noise.
This noise changes only with vehicle speed. Pinion
bearing noise will be higher because it rotates at a
faster rate. Drive the vehicle and load the differen-
tial. If bearing noise occurs the pinion rear bearing is
the source of the noise. If the bearing noise is heard
during a coast, front bearing is the source.
Worn, damaged differential bearings usually pro-
duce a low pitch noise. Differential bearing noise is
similar to pinion bearing. The pitch of differential
bearing noise is also constant and varies only with
vehicle speed.
2 - 18 FRONT SUSPENSION AND AXLEJ

Page 54 of 2198

JEEP CHEROKEE 1995 Service Repair Manual Axle shaft bearings produce noise and vibration
when worn or damaged. The noise generally changes
when the bearings are loaded. Road test the vehicle.
Turn the vehicle sharply to the left and to the r

Page 55 of 2198

JEEP CHEROKEE 1995 Service Repair Manual SERVICE DIAGNOSIS
2 - 20 FRONT SUSPENSION AND AXLEJ

Page 56 of 2198

JEEP CHEROKEE 1995 Service Repair Manual SERVICE DIAGNOSIS (CONTD)
JFRONT SUSPENSION AND AXLE 2 - 21

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