SPRING
REMOVAL
(1) Raise and support the vehicle. Position a
hydraulic jack under the axle to support it.
(2) Paint or scribe alignment marks on lower sus-
pension arm cam adjusters and axle bracket for
installation reference.
(3) Remove the upper suspension arm and loosen
lower suspension arm bolts.
(4) Mark and disconnect the front propeller shaft
from the axle 4x4 models.
(5) Disconnect the track bar from the frame rail
bracket.
(6) Disconnect the drag link from pitman arm.
(7) Disconnect the stabilizer bar link and shock
absorber from the axle.
(8) Lower the axle until the spring is free from the
upper mount. Remove the coil spring.
INSTALLATION
(1) Position the coil spring on the axle pad.
(2) Raise the axle into position until the spring
seats in the upper mount.
(3) Connect the stabilizer bar links and shock
absorbers to the axle bracket. Connect the track bar
to the frame rail bracket.
(4) Install the upper suspension arm.
(5) Install the front propeller shaft to the axle 4x4
model.
(6) Install drag link to pitman arm and tighten
nut to specifications. Install new cotter pin.
(7) Remove the supports and lower the vehicle.
(8) Tighten the following suspension components
to specifications:
²Link to stabilizer bar nut.
²Lower shock bolt.
²Track bar bolt at axle shaft tube bracket.
²Upper suspension arm nut at axle bracket.
²Upper suspension nut at frame bracket.
²Align lower suspension arm reference marks and
tighten cam nut.
²Lower suspension nut at frame bracket.
STABILIZER BAR
REMOVAL
(1) Raise and support the vehicle.
(2) Hold the stabilizer link shafts with a wrench
and remove the link nuts at the stabilizer bar.
(3) Remove the retainers and grommets from the
stabilizer bar links.
(4) Remove the stabilizer bar link nuts from the
axle brackets.
Fig. 23 Shock Absorber and Bracket
1 - GROMMET
2 - RETAINER
3 - BRACKET
4 - RETAINER
5 - SHOCK
6 - GROMMET
Fig. 24 Shock Absorber Axle Mount
1 - SHOCK
2 - SPRING
3 - FLAG NUT
4 - SHOCK BOLT
DRFRONT - LINK/COIL 2 - 39
SHOCK (Continued)
(12) Remove upper and lower suspension arms
from the axle bracket (Fig. 5).
(13) Lower the axle. The coil springs will drop
with the axle.
(14) Remove coil springs from the axle bracket.
INSTALLATION
CAUTION: Suspension components with rubber
bushings should be tightened with the weight of thevehicle on the suspension. Failure to heed caution
may result in damage.
(1) Support the axle on a suitable lifting device.
(2) Secure axle to lifting device.
(3) Position the axle under the vehicle.
(4) Install springs, retainer clip and bolts.
(5) Raise axle and align it with the spring pads.
(6) Position upper and lower suspension arms in
the axle brackets. Install bolts, nuts and align the
suspension alignment cams to the reference marks.
Do not tighten at this time.
Fig. 2 SHOCK ABSORBER
1 - SHOCK
2 - SPRING
3 - FLAG NUT
4 - SHOCK BOLT
Fig. 3 TRACK BAR
1 - TRACK BAR
2 - BOLT
3 - NUT
Fig. 4 DRAG LINK
1 - PITMAN ARM
2 - DRAGLINK
3 - PULLER C-3894-A
Fig. 5 LINK/COIL SUSPENSION
1 - STABILIZER BAR
2 - SHOCK ABSORBER
3 - COIL SPRING
4 - UPPER SUSPENSION ARM
5 - LOWER SUSPENSION ARM
6 - TRACK BAR
3 - 58 FRONT AXLE - 9 1/4 AADR
FRONT AXLE - 9 1/4 AA (Continued)
(4) Disconnect and cap the fluid hoses from steer-
ing gear (Refer to 19 - STEERING/PUMP/HOSES -
REMOVAL).
(5) Remove coupler pinch bolt at the steering gear
and slide shaft off gear (Fig. 2).
(6) Mark the pitman shaft and pitman arm for
installation reference. Remove the pitman arm from
the shaft with Puller C-4150A (Refer to 19 - STEER-
ING/LINKAGE/PITMAN ARM - REMOVAL), (Fig. 3).
(7) Remove steering gear three mounting bolts
(Fig. 4). Remove the steering gear from the vehicle.
INSTALLATION
(1) Position the steering gear on the frame rail and
install the three mounting bolts (Fig. 4). Tighten the
mounting bolts to 196 N´m (145 ft. lbs.).(2) Align steering coupler on gear shaft. Install
pinch bolt and tighten to 49 N´m (36 ft. lbs.) torque.
(3) Align and install the pitman arm (Refer to 19 -
STEERING/LINKAGE/PITMAN ARM - INSTALLA-
TION).
(4) Install the washer and retaining nut on the pit-
man shaft. Tighten the nut to 305 N´m (225 ft. lbs.).
(5) Connect fluid hoses to steering gear (Refer to
19 - STEERING/PUMP/HOSES - INSTALLATION),
tighten to 31 N´m (23 ft. lbs.).
(6) Add fluid, (Refer to 19 - STEERING/PUMP -
STANDARD PROCEDURE).
(7) Reset the toe and center the steering wheel
(Refer to 2 - SUSPENSION/WHEEL ALIGNMENT -
STANDARD PROCEDURE).
ADJUSTMENTS
ADJUSTMENT
CAUTION: Steering gear must be adjusted in the
proper order. If adjustments are not performed in
order, gear damage and improper steering response
may result.
NOTE: Adjusting the steering gear in the vehicle is
not recommended. Remove gear from the vehicle
and drain the fluid. Then mount gear in a vise to
perform adjustments.
(1) Remove the steering gear from the vehicle
(Refer to 19 - STEERING/GEAR - REMOVAL).
(2) Mount the gear carefully into a soft-jawed vise.
Fig. 2 COLUMN SHAFT
1 - STEERING COUPLER
2 - STEERING GEAR INPUT SHAFT
Fig. 3 PITMAN ARM REMOVAL
1 - PITMAN ARM
2 - C-4150A PULLER
Fig. 4 STEERING GEAR REMOVAL/INSTALLATION
1 - STEERING GEAR
2 - MOUNTING BOLTS (3)
DRGEAR - LINK/COIL 19 - 21
GEAR - LINK/COIL (Continued)
CAUTION: Do not overtighten the vise on the gear
case. This may affect the adjustment
(3) Hold the steering gear upside down over a
drain pan and rotate the input shaft back and forth
several times lock-to-lock to discharge the fluid from
the steering gear
(4) Rotate the input shaft to the left stop and then
back-off approximately 45 degrees. Using an inch-
pound torque wrench on the input shaft, record the
peak torque required to slowly and evenly rotate the
input shaft clockwise
1¤2turn (180 degrees) starting
from the 45 degree position. This peak torque read-
ing is the preload torque. The preload torque must be
within2-10in-lbs.
(5) Rotate the input shaft to its center of travel
(approximately 1.5 turns from either stop). Place the
torque wrench on the input shaft with the handle in
the vertical position. Rotate the torque wrench slowly
and evenly
1¤4turn (90 degrees) each side of center
and record the peak torque measure on or near cen-ter. This total on-center torque reading must be5-9
in-lbs higher than the previously measured preload
torque without exceeding a total of 17 in-lbs. The
value of the total on-center minus the preload torque
is defined as the meshload torque
(6) If required, adjust the on-center torque by loos-
ening the adjuster screw lock nut and turning the
adjuster screw until the total on-center and meshload
torque readings fall within the specified values. Turn
the adjuster screw clockwise to increase and counter-
clockwise to decrease the torque reading. While hold-
ing the adjuster screw in place, tighten the lock nut
to 31 N´m (23 ft. lbs.).
(7) Re-check the preload and on-center torque
readings.
(8) Install pitman arm on the steering gear (Refer
to 19 - STEERING/LINKAGE/PITMAN ARM -
INSTALLATION).
(9) Reinstall steering gear to the vehicle (Refer to
19 - STEERING/GEAR - INSTALLATION).
SPECIFICATIONS
POWER STEERING GEAR
SPECIFICATIONS
DESCRIPTION SPECIFICATION
Steering Gear
TypeRecirculating Ball
Gear Code & Ratio 12.5:1
TORQUE SPECIFICATIONS
DESCRIPTION N´m Ft. Lbs. In. Lbs.
Preload
Torque0.23-1.13 Ð 2-10
Meshload Torque 0.56-1.02 Ð 5-9
+ Preload (17 Max)
19 - 22 GEAR - LINK/COILDR
GEAR - LINK/COIL (Continued)
PITMAN SHAFT SEAL
REMOVAL
REMOVAL - GAS ENGINE
(1) Seperate the pitman arm from the gear box
(Refer to 19 - STEERING/LINKAGE/PITMAN ARM -
REMOVAL).
(2) Clean exposed end of pitman shaft and housing
with a wire brush.
(3) Rotate the steering wheel from stop to stop and
count the number of turns.
(4) Center the steering wheel by rotating it from
the stop back 1 1/2 turns to achieve center position.
(5) Remove the pitman shaft cover bolts.
NOTE: The pitman shaft will not clear the housing if
it is not centered.
(6) Remove the pitman shaft from the gear.
(7) Remove dust seal from the housing with a spe-
cial tool (Fig. 5).
CAUTION: Use care not to score the housing bore
when prying out seals and washer.
(8) Remove retaining ring with snap ring pliers.
(9) Remove washer from the housing.
NOTE: Tighten the slide hammer adapter 8990 into
the seal using wrenches, in order to make a tight fit
to pull the seal out. If this is not performed the seal
may tear on the removal making it difficult to
remove.(10) Remove oil seal from the housing with a spe-
cial tool 8990 with slide hammer C-3752.
REMOVAL - DIESEL
(1) Seperate the pitman arm from the gear box
(Refer to 19 - STEERING/LINKAGE/PITMAN ARM -
REMOVAL).
(2) Remove the steering gear box (Refer to 19 -
STEERING/GEAR - REMOVAL).
(3) Install the steering gear in a soft jawed bench
vise.
(4) Clean exposed end of pitman shaft and housing
with a wire brush.
(5) Rotate the input shaft with a 12 point socket
from stop to stop and count the number of turns (Fig.
6).
(6) Center the input shaft by rotating it from the
stop 1/2 of the total amount of turns (Fig. 6).
(7) Remove the pitman shaft cover bolts.
NOTE: The pitman shaft will not clear the housing if
it is not centered.
(8) Remove the pitman shaft from the gear.
(9) Remove dust seal from the housing with a spe-
cial tool 8990 (Fig. 5).
CAUTION: Use care not to score the housing bore
when prying out seals.
(10) Remove retaining ring with snap ring pliers.
(11) Remove washer from the housing.
Fig. 5 SLIDE HAMMER
1 - STEERING GEAR
2 - SLIDE HAMMER C-3752 USED WITH SPECIAL TOOL
ADAPTER
8990
Fig. 6 CENTERING STEERING GEAR
1 - STEERING GEAR
2 - 12 POINT SOCKET
3 - RATCHET
4 - INPUT SHAFT
DRGEAR - LINK/COIL 19 - 25
NOTE: Tighten the slide hammer adapter 8990 into
the seal using wrenches, in order to make a tight fit
to pull the seal out. If this is not performed the seal
may tear on the removal making it difficult to
remove.
(12) Remove oil seal from the housing with a spe-
cial tool 8990 with slide hammer C-3752. (Fig. 5).
INSTALLATION
INSTALLATION - GAS ENGINE
NOTE: Generous amounts of the high temperature
grease from the seal kit should be applied to areas
between the pitman shaft bearing and oil seals and
also between the dust seals and snap ring.
(1) Coat the oil seal and washer withhigh temp
grease.
NOTE: Install the oil seal with the lip facing inward.
Flat side of the oil seal should be against the
washer.
(2) Install the oil seal with special tool 8989 driver
and C-4171 handle (Fig. 7).
(3) Install backup washer.
(4) Install the retainer ring with snap ring pliers.
(5) Coat the dust seal withhigh temp grease.
(6) Install the dust seal with a driver and handle
(Fig. 7).
(7) Install protective seal protector 8993 over the
shaft (Fig. 8).(8) Install the pitman shaft into the steering gear
until it fully seats into the bearing.
(9) Install the new cover bolts and tighten to 68
N´m (50 ft. lbs.).
(10) Install the pitman arm (Refer to 19 - STEER-
ING/LINKAGE/PITMAN ARM - INSTALLATION).
INSTALLATION - DIESEL
NOTE: Generous amounts of the high temperature
grease from the seal kit should be applied to areas
between the pitman shaft bearing and oil seals and
also between the dust seals and snap ring.
(1) Coat the oil seal and washer withhigh temp
grease.
NOTE: Install the oil seal with the lip facing inward.
Flat side of the oil seal should be against the
washer.
(2) Install the oil seal with special tool 8989 driver
and C-4171 handle (Fig. 7).
(3) Install backup washer.
(4) Install the retainer ring with snap ring pliers.
(5) Coat the dust seal withhigh temp grease.
(6) Install the dust seal with special tool 8989
driver and C-4171 handle (Fig. 7).
(7) Install protective seal protector 8993 over the
shaft (Fig. 8).
(8) Install the pitman shaft into the steering gear
until it fully seats into the bearing.
(9) Install the new cover bolts and tighten to 68
N´m (50 ft. lbs.).
(10) Install the steering gear (Refer to 19 -
STEERING/GEAR - INSTALLATION).
Fig. 7 SEAL INSTALLATION
1 - SPECIAL TOOL C-4171
2 - SPECIAL TOOL 8989
3 - STEERING GEAR
Fig. 8 PITMAN SHAFT SEAL PROTECTOR
1 - STEERING GEAR
2 - SPECIAL TOOL 8993
19 - 26 GEAR - LINK/COILDR
PITMAN SHAFT SEAL (Continued)
(11) Install the pitman arm (Refer to 19 - STEER-
ING/LINKAGE/PITMAN ARM - INSTALLATION).
(12) Perform a wheel alignment (Refer to 2 - SUS-
PENSION/WHEEL ALIGNMENT - STANDARD
PROCEDURE).
STEERING GEAR INPUT
SHAFT SEAL
REMOVAL
(1) Remove the steering gear from the vehicle
(Refer to 19 - STEERING/GEAR - REMOVAL).
CAUTION: Do not overtighten the vise on the gear
case. This may affect the adjustment
(2) Mount the steering gear upside down over a
drain pan in a soft jawed vise.
(3) Place a drain pan under the gear and rotate
the input shaft back and forth several times lock-to-
lock to discharge the fluid from the steering gear
(4) Drain all the remaining fluid from the gear.
(5) Rotate the input shaft from stop to stop and
count the number of turns using a 12 point socket
(Fig. 9).
NOTE: The pitman shaft will not clear the housing if
it is not centered.
(6) Center the input shaft by rotating it from the
stop back 1 1/2 turns to achieve center position (Fig.
9).(7) Remove the pitman shaft (Refer to 19 -
STEERING/GEAR/PITMAN SHAFT - REMOVAL).
(8) Remove the four bolts securing the valve hous-
ing.
(9) Remove the valve housing from the steering
gear (Fig. 10).
(10) Remove the valve housing and wormshaft
assembly from the steering gear housing and place
the valve housing in a soft jawed vise (Fig. 11).
Fig. 9 CENTERING STEERING GEAR
1 - STEERING GEAR
2 - 12 POINT SOCKET
3 - RATCHET
4 - INPUT SHAFT
Fig. 10 VALVE ASSEMBLY
1 - VALVE HOUSING
2 - WORMSHAFT BALLS
3 - STEERING GEAR HOUSING
Fig. 11 VALVE HOUSING AND WORMSHAFT
1 - VALVE HOUSING
2 - SET SCREW
3 - RETAINER RING
DRGEAR - LINK/COIL 19 - 27
PITMAN SHAFT SEAL (Continued)
(7) Install the input shaft seal protector 8986 (Fig.
20).
(8) Coat the new seal inhigh temp greaseand
Install the new oil seal using special tool 8987 driver
and C-4171 handle (Fig. 21).
NOTE: Drive the oil seal into the housing until the
outer edge does not quite clear the snap ring
groove.
(9) Insert the snap ring into the housing. Using
special tool 8987 driver and C-4171 handle push the
snap ring and oil seal together until the snap ring
seats in the groove.NOTE: Generous amounts of the high temperature
grease from the seal kit should be applied to areas
between the pitman shaft bearing and oil seals and
also between the dust seals and snap ring.
(10) Install the new dust seal usinghigh temp
grease, special tool C-4171 (driver) and 8987 (han-
dle).
(11) Check to make sure the gear is centered in
the middle tooth before installing the pitman shaft
(Fig. 19).
(12) Install the pitman shaft into the steering gear
(Refer to 19 - STEERING/GEAR/PITMAN SHAFT -
INSTALLATION).
(13) Perform over-center meshload adjustment
(Refer to 19 - STEERING/GEAR - ADJUSTMENTS).
(14) Install the steering gear to the vehicle (Refer
to 19 - STEERING/GEAR - INSTALLATION).
(15) Perform a wheel alignment (Refer to 2 - SUS-
PENSION/WHEEL ALIGNMENT - STANDARD
PROCEDURE).
PITMAN SHAFT
REMOVAL
REMOVAL - GAS
(1) Separate the pitman arm from the gear box
(Refer to 19 - STEERING/LINKAGE/PITMAN ARM -
REMOVAL).
(2) Clean exposed end of pitman shaft and housing
with a wire brush.
(3) Rotate the steering wheel from stop to stop and
count the number of turns.
(4) Center the steering wheel by rotating it from
the stop back 1 1/2 turns to achieve center position.
(5) Remove the pitman shaft cover bolts.
NOTE: The pitman shaft will not clear the housing if
it is not centered.
(6) Remove the pitman shaft from the gear (Fig.
22).
(7) Remove the cover if needed by loosing the
adjuster nut, Then removing the cover from the pit-
man shaft.
REMOVAL - DIESEL
(1) Separate the pitman arm from the gear box
(Refer to 19 - STEERING/LINKAGE/PITMAN ARM -
REMOVAL).
(2) Remove the steering gear box (Refer to 19 -
STEERING/GEAR - REMOVAL).
(3) Install the steering gear in a soft jawed bench
vise.
Fig. 20 INPUT SHAFT SEAL PROTECTOR
1 - INPUT SHAFT
2 - SPECIAL TOOL 8986
Fig. 21 INPUT SHAFT SEAL INSTALLATION
1 - VALVE HOUSING
2 - SPECIAL TOOL 8987
3 - SPECIAL TOOL C-4171
19 - 30 GEAR - LINK/COILDR
STEERING GEAR INPUT SHAFT SEAL (Continued)