1998 DODGE RAM 1500 wheel

HUB / BEARING
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the wheel and tire assembly.
(3) Remove the hub extension mounting nuts and
remove the extension from the rotor if equipped (Fig.
1).
(4) Remove the brake caliper, (Refer to 5 -
BRAKES/HYDRAULIC/MECHANICAL/DISC
BRAKE CALIPERS - REMOVAL).
(5) Remove the cotter pin and the hub nut from
the axle shaft (Fig. 2).
(6) Disconnect the ABS wheel speed sensor wire
from under the hood. Remove the sensor wire from
the frame and steering knuckle if equipped.
(7) Back off the hub/bearing mounting bolts 1/4
inch each (Fig. 3). Then tap the bolts with a hammer
to loosen the hub/bearing from the steering knuckle.
(8) Remove the hub/bearing mounting bolts and
remove the hub/bearing.
(9) Remove the rotor assembly (Fig. 4), brake
shield and spacer from the steering knuckle.
RECEIVER CUP - 6761
BALLJOINT RECIEVER/INSTALLER KIT- 8975
Fig. 1 Hub Extension
1 - HUB EXTENSION
2 - HUB
Fig. 2 Hub Nut Cotter Pin
1 - HUB NUT
2 - COTTER PIN
Fig. 3 Hub/Bearing Mounting Bolts
1 - SOCKET AND EXTENSION
2 - ROTOR AND HUB
3 - STEERING KNUCKLE
DRFRONT - LINK/COIL 2 - 31
FRONT - LINK/COIL (Continued)

(10) Press out the wheel studs/hub extension studs
and separate the rotor from the hub (Fig. 5).
(11) Remove the wheel speed sensor (Fig. 6) from
the hub bearing if equipped.
INSTALLATION
(1) Install the wheel speed sensor in the hub bear-
ing if equipped.
(2) Position the rotor on the hub/bearing.(3) Press the wheel studs/hub extension studs
through the back side of the rotor and through the
hub bearing flange (Fig. 7).
(4) Apply a liberal quantity of anti-seize compound
to the splines of the front drive shaft.
(5) Insert the two rearmost, top and bottom rotor
hub bolts in the steering knuckle. Insert the bolts
through the back side of the knuckle so they extend
out the front face as shown.
Fig. 4 Rotor Hub/Bearing Assembly
1 - ROTOR AND HUB
2 - UNIT BEARING ASSEMBLY
3 - SEAL
Fig. 5 ROTOR AND HUB/BEARING
1 - HUB BEARING
2 - ROTOR
Fig. 6 Wheel Speed Sensor
1 - HUB BEARING
2 - WHEEL SPEED SENSOR
Fig. 7 Rotor, Hub/Bearing And Stud
1 - HUB BEARING
2 - ROTOR
3 - STUD
2 - 32 FRONT - LINK/COILDR
HUB / BEARING (Continued)

(6) Position the hub spacer (Fig. 8) and brake
shield (Fig. 9) on bolts just installed in knuckle.
NOTE: If the vehicle is equipped with a wheel speed
sensor the brake shield must be positioned on the
hub bearing (Fig. 10).
(7) Align the rotor hub with the drive shaft and
start the shaft into the rotor hub splines.NOTE: Position wheel speed sensor wire at the top
of the knuckle if equipped.
(8) Align the bolt holes in the hub bearing flange
with the bolts installed in the knuckle. Then thread
the bolts into the bearing flange far enough to hold
the assembly in place.
(9) Install the remaining bolts. Tighten the hub/
bearing bolts to 202 N´m (149 ft. lbs.
(10) Install the washer and axle nut and tighten a
beginning torque of 179 N´m (132 ft. lbs.).
(11) Rotate the axle 5 to 10 times to seat the hub
bearing.
(12) Tighten to a final torque of 356 N´m (263 ft.
lbs.).
(13) Align the axle nut to the next forward cotter
pin hole and install a new cotter pin in the axle nut.
(14) Install the brake caliper, (Refer to 5 -
BRAKES/HYDRAULIC/MECHANICAL/DISC
BRAKE CALIPERS - INSTALLATION).
(15) Install the sensor wire to the steering knuckle
and frame and if equipped. Connect the wheel speed
sensor wire under the hood.
(16) Install the wheel and tire assemblies, (Refer
to 22 - TIRES/WHEELS/WHEELS - STANDARD
PROCEDURE).
(17) Remove the support and lower the vehicle.
(18) Apply the brakes several times to seat the
brake shoes and caliper piston. Do not move the vehi-
cle until a firm brake pedal is obtained.
Fig. 8 Hub Spacer
1 - ROTOR HUB BOLTS
2 - HUB SPACER (POSITION FLAT TO REAR)
3 - APPLY ANTI-SEIZE COMPOUND TO SPLINES
Fig. 9 Brake Shield
1 - BRAKE SHIELD
2 - HUB BEARING BOLTS
3 - STEERING KNUCKLE
Fig. 10 Brake Shield With Wheel Speed Sensor
1 - WHEEL SPEED SENSOR
2 - HUB BEARING
3 - SHIELD
DRFRONT - LINK/COIL 2 - 33
HUB / BEARING (Continued)

(3) Tighten the upper and lower bolt/nuts Tighten
to 135 N.m (100 ft. lbs.)
(4) Remove the support and lower the vehicle.
SPRING
DESCRIPTION
The rear suspension system uses a multi-leaf
springs and a solid drive axle. The forward end of the
springs are mounted to the body rail hangers
through rubber bushings. The rearward end of the
springs are attached to the body by the use of shack-
les. The spring and shackles use rubber bushings.
OPERATION
The springs control ride quality and maintain vehi-
cle ride height. The shackles allow the springs to
change their length as the vehicle moves over various
road conditions.
REMOVAL
(1) Raise and support the vehicle.
(2) Support the axle with a suitable holding fix-
ture.
(3) Remove the nuts, spring clamp bolts and the
plate that attach the spring to the axle (Fig. 4).
(4) Remove the nuts and bolts from the spring
front and rear shackle (Fig. 4).
(5) Remove the spring from the vehicle.
INSTALLATION
(1) Position spring on axle shaft tube so spring
center bolt is inserted into the locating hole in the
axle tube.(2) Align the front of the spring with the bolt hole
in the front bracket. Install the eye pivot bolt and
nut.
(3) Align the rear of the spring into the shackle
and install the bolt and nut.
(4) Tighten the spring front and rear eye pivot bolt
snug do not torque.
(5) Install the spring clamp bolts, plate and the
retaining nuts.
(6) Remove the holding fixture for the rear axle.
(7) Remove the supports and lower the vehicle so
that the weight is being supported by the tires.
(8) Tighten the spring clamp retaining nuts to 149
N´m (110 ft. lbs.).
(9) Tighten the spring front and rear pivot bolt
nuts to 163 N´m (120 ft. lbs.)(LD) or 230 N´m (170 ft.
lbs.)(HD).
SPRING TIP INSERTS
REMOVAL
(1) Raise and support the vehicle.
(2) Remove both rear tireand wheel assemblies
(3) Position a large C-Clamp adjacent to the spring
clinch clip and clamp the leaves of the spring
together
Fig. 3 SHOCK ABSORBER
1 - NUT
2 - AXLE
3 - SHOCK ABSORBER
Fig. 4 REAR SPRING
1 - LEAF SPRING
2 - PLATE
3 - NUTS
4 - FRONT NUT & BOLT
5 - SPRING CLAMP BOLTS
6 - SHACKLES
2 - 44 REARDR
SHOCK (Continued)

(5) Place one spring clinch clip isolator onto the
outboard side of the spring clinch clip (Fig. 9) and
one isolator on the inboard side of the spring clinch
clip.
(6) Using large adjustable pliers, close the spring
clinch clip until the isolator contacts the leaf spring
(Fig. 10).
CAUTION: DO NOT USE A HAMMER TO CLOSE THE
SPRING CLINCH CLIP. DAMAGE TO THE ISOLATOR
MAY RESULT.(7) Use an appropriate pry bar to bend open the
spring clinch clip. If necessary, remove the existing
spring clinch clip isolators.
(8) Repeat procedure for the other side of the vehi-
cle.
(9) Iinstall the tire wheel assemblies.
(10) Lower the vehicle.
Fig. 9 CLINCH CLIP ISOLATOR
1 - SPRING CLINCH CLIP ISOLATOR
2 - C-CLAMP
Fig. 10 CLINCH CLIP REASSEMBLY
1 - SPRING CLINCH CLIP
2 - ADJUSTABLE PLIERS
3 - C-CLAMP
2 - 46 REARDR
SPRING TIP INSERTS (Continued)

DIFFERENTIAL & DRIVELINE
TABLE OF CONTENTS
page page
PROPELLER SHAFT......................1
HALF SHAFT...........................20
FRONT AXLE - C205F....................27
FRONT AXLE - 9 1/4 AA...................54REAR AXLE-91/4.......................80
REAR AXLE - 10 1/2 AA..................112
REAR AXLE - 11 1/2 AA..................140
PROPELLER SHAFT
TABLE OF CONTENTS
page page
PROPELLER SHAFT
DIAGNOSIS AND TESTING................1
STANDARD PROCEDURE.................3
SPECIFICATIONS........................6
SPECIAL TOOLS........................6
PROPELLER SHAFT- LD FRONT
REMOVAL.............................6
INSTALLATION..........................7
PROPELLER SHAFT - HD FRONT
REMOVAL.............................7
INSTALLATION..........................7
REAR PROPELLER SHAFT
REMOVAL.............................8
INSTALLATION..........................8CENTER BEARING
REMOVAL.............................9
INSTALLATION..........................9
ADJUSTMENTS.........................9
SINGLE CARDAN UNIVERSAL JOINTS
DISASSEMBLY
DISASSEMBLY - WITH SNAP RINGS......10
DISASSEMBLY - WITH INJECTED RINGS . . . 11
ASSEMBLY
ASSEMBLY - WITH SNAP RINGS.........12
ASSEMBLY - WITH INJECTED RINGS......13
DOUBLE CARDAN UNIVERSAL JOINTS
DISASSEMBLY.........................16
ASSEMBLY............................17
PROPELLER SHAFT
DIAGNOSIS AND TESTING
PROPELLER SHAFT VIBRATION
Out-of-round tires or wheels that are out of bal-
ance, will cause a low frequency vibration.
Driveline vibration can also caused by loose or
damaged engine mounts.Propeller shaft vibration increases with vehicle
speed. A vibration that occurs at a specific speed
range, is not usually caused by an out of balance pro-
peller shaft. Defective universal joints or an incorrect
propeller shaft angle are usually the cause of such a
vibration.
DRDIFFERENTIAL & DRIVELINE 3 - 1

DRIVELINE VIBRATION
Drive Condition Possible Cause Correction
Propeller Shaft Noise 1) Undercoating or other foreign
material on shaft.1) Clean exterior of shaft and wash
with solvent.
2) Loose U-joint clamp screws. 2) Install new clamps and screws
and tighten to proper torque.
3) Loose or bent U-joint yoke or
excessive runout.3) Install new yoke.
4) Incorrect driveline angularity. 4) Measure and correct driveline
angles.
5) Rear spring center bolt not in
seat.5) Loosen spring u-bolts and seat
center bolt.
6) Worn U-joint bearings. 6) Install new U-joint.
7) Propeller shaft damaged or out
of balance.7) Installl new propeller shaft.
8) Broken rear spring. 8) Install new rear spring.
9) Excessive runout or unbalanced
condition.9) Re-index propeller shaft, test,
and evaluate.
10) Excessive drive pinion gear
shaft runout.10) Re-index propeller shaft and
evaluate.
11) Excessive axle yoke deflection. 11) Inspect and replace yoke if
necessary.
12) Excessive transfer case runout. 12) Inspect and repair as necessary.
Universal Joint Noise 1) Loose U-joint clamp screws. 1) Install new clamps and screws
and tighten to proper torque.
2) Lack of lubrication. 2) Replace as U-joints as
necessary.
PROPELLER SHAFT BALANCE
If propeller shaft is suspected of being out of bal-
ance, use the following procedure.
NOTE: Indexing propeller shaft 180É relative to the
yoke may eliminate some vibrations.
(1) Raise and support vehicle.
(2) Clean all foreign material from the propeller
shaft and universal joints.
(3) Inspect propeller shaft for missing balance
weights, broken welds and bent areas.If propeller
shaft is bent, it must be replaced.
(4) Inspect universal joints for wear and properly
installed.
(5) Check propeller shaft bolt torques.
(6) Remove wheels and install lug nuts to retain
brake rotors.
(7) Mark and number the shaft six inches from the
pinion yoke end at four positions 90É apart.
(8) Run and accelerate vehicle until vibration
occurs. Note the intensity and speed the vibration
occurred. Stop the engine.(9) Install a screw clamp at position 1 (Fig. 1).
Fig. 1 CLAMP SCREW AT POSITION 1
1 - CLAMP
2 - SCREWDRIVER
3 - 2 PROPELLER SHAFTDR
PROPELLER SHAFT (Continued)

(10) Start engine and check vibration. If there is
little or no change move the clamp to the next posi-
tions. Repeat the vibration test.
NOTE: If there is no difference in vibration at this
positions, the vibration may not be the propeller
shaft.
(11) If vibration decreased, install a second clamp
(Fig. 2) and repeat the test.
(12) If additional clamp causes an additional vibra-
tion, separate the clamps 1/2 inch above and below
the mark. Repeat the vibration test (Fig. 3).
(13) Increase distance between the clamp screws
and repeat test, until the least amount of vibration is
noticed. Bend the slack end of the clamps so screws
will not loosen.
(14) If vibration remains unacceptable, repeat the
procedure to the front end of the propeller shaft.
(15) Install wheels and lower vehicle.PROPELLER SHAFT RUNOUT
(1) Clean propeller shaft surface, where dial indi-
cator will contact the shaft.
(2) Install dial indicator perpendicular to the shaft
surface.
(3) Measure runout at the center and ends of the
shaft away from weld areas, so weld process does not
affect measurements.
(4) Refer to Runout Specifications chart.
(5) If runout is out of specification, index the shaft
180É and take shaft runout measurements again.
(6) If runout is now within specifications, mark
shaft and yokes for proper orientation.
(7) If runout is not within specifications, verify
runout of the transmission/transfer case and axle are
within specifications. Correct as necessary and mea-
sure propeller shaft runout again.
(8) Replace propeller shaft if the runout still
exceeds the limits.
RUNOUT SPECIFICATIONS
Front of Shaft 0.030 in. (0.76 mm)
Center of Shaft 0.015 in. (0.38 mm)
Rear of Shaft 0.030 in. (0.76 mm)
note:
Measure front/rear runout approximately 3 inches (76
mm) from the weld seam at each end of the shaft
tube for tube lengths over 30 inches. For tube lengths
under 30 inches, the maximum allowed runout is
0.020 in. (0.50 mm) for the full length of the tube.
STANDARD PROCEDURE
PROPELLER SHAFT ANGLE
This procedure applies to front and rear propeller
shafts.
NOTE: To obtain output angle (A) on the front pro-
peller shaft equipped with a C/V joint, place incli-
nometer on machined surface of the C/V joint.
(1) Place vehicle in Neutral.
(2) Raise vehicle and support the axles as level as
possible.
(3) Remove universal joint snap rings if equipped,
so Inclinometer 7663 base sits flat.
(4) Rotate shaft until transmission/transfer case
output yoke bearing is facing downward.
NOTE: Always take measurements from front to
rear and on the same side of the vehicle.
(5) Place inclinometer on yoke bearing cap or pin-
ion flange ring (A) parallel to the shaft (Fig. 4). Cen-
ter bubble in sight glass and record measurement.
Fig. 2 TWO CLAMP SCREWS
Fig. 3 CLAMP SCREWS SEPARATED
1-1¤2INCH
DRPROPELLER SHAFT 3 - 3
PROPELLER SHAFT (Continued)