Page 2457 of 5267

NOTE: The pitman shaft will not clear the housing if it is not centered.
8. Remove the pitman shaft from the gear (1).
9. Remove dust seal from the housing with the seal
remover adapter tool 8990 (2).
CAUTION: Use care not to score the housing bore
when prying out seals.
10. Removeretainingringwithsnapringpliers.
11. Remove washer from the housing.
NOTE: Tighten the slide hammer seal remover
adapter tool 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 the seal
remover adapter tool 8990 (2) along with slide hammer puller C-3752.
INSTALLATION
GAS
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 pitman shaft seal installer
tool 8989 driver (2) and C-4171 handle (1).
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 (2) and handle (1).
Page 2458 of 5267

7. Install pitman shaft protective seal protector 8993
(2)overtheshaft.
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 Nꞏm
(50 ft. lbs.).
10. Install the pitman arm (Refer to 19 - STEERING/
LINKAGE/PITMAN ARM - 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 pitman shaft seal installer
8989 driver (2) and C-4171 handle (1).
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 pitman shaft seal installer 8989 driver (2) andC-4171handle(1).
7. Install pitman shaft protective seal protector 8993
(2)overtheshaft(1).
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 Nꞏm
(50 ft. lbs.).
10. Install the steering gear (Refer to 19 - STEER-
ING/GEAR - INSTALLATION).
11. Install the pitman arm (Refer to 19 - STEERING/
LINKAGE/PITMAN ARM - INSTALLATION).
12. Perform a wheel alignment (Refer to 2 - SUS-
PENSION/WHEEL ALIGNMENT - STANDARD
PROCEDURE).
Page 2459 of 5267
STEERING GEAR INPUT SHAFT SEAL
REMOVAL
1. Remove the steering gear from the vehicle(Referto19-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 (4) from stop to stop and
count the number of turns using a 12 point socket
(2).
NOTE: The pitman shaft will not clear the housing
if it is not centered.
6. Center the input shaft (4) by rotating it from the
stop back 1 1/2 turns to achieve center position.
7. Remove the pitman shaft (Refer to 19 - STEERING/GEAR/PITMAN SHAFT - REMOVA L ) .
8. Remove the four bolts securing the valve housing
(1).
9. Remove the valve housing (1) from the steering
gear (3).
Page 2460 of 5267
10. Remove the valve housing (1) and wormshaft
assembly from the steering gear housing and
place the valve housing in a soft jawed vise.
11. Remove the retainer ring (3) set screw (1) from
the valve housing.
12. Using special tool retainer ring wrench 8988 (1) to
remove the steering gear worm thrust bearing
retainer ring.
Page 2461 of 5267
13. Separate the wormshaft assembly from the valve
housing, Then remove the wormshaft assembly
from the vise.
14. Remove the dust seal (3) with a pick (1).
CAUTION: Use care not to score the housing bore
when removing seals.
15. Remove the snap ring (2) with snap ring pliers
(1).
Page 2462 of 5267
16. Using slide hammer puller C-3752 (1) with seal
remover adapter 8990 (1) remove the oil seal.
INSTALLATION
1. Inspect the piston teflon seals for damage. Replace
if needed.
NOTE: To replace the teflon seals, use a pick to
remove the teflon o-ring and the rubber o-ring
underneath. Install a new rubber o-ring in the pis-
ton seal grove and a new teflon o-ring over the top
of it.
2. Install the valve into the valve housing (1).
3. Threadtheretainerringintothevalvehousing(1).
Tightento97Nꞏm(72ft.lbs.).
NOTE: It is very important to make sure to com-
pensate for the added length of the torque wrench
when torquing to proper specifications.
4. Install the retainer ring set screw. Tighten to 2.26
Nꞏm (20 in. lbs.)
5. Clean the steering gear housing.
CAUTION: Valve assembly must be centered to the
housing (1).
6. Install the valve assembly (2) into the steering
gear. Tighten the new bolts to 54 Nꞏm (40 ft. lbs.)
Page 2463 of 5267

7. Install the input shaft seal protector 8986 (2).
8. Coat the new seal inhigh temp greaseand Install
the new oil seal using the input shaft seal installer
tool 8987 driver (2) and C-4171 handle (3).
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 the
input shaft seal installer 8987 driver (2) and C-4171
handle (3) 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 (handle) (3) and 8987 (driver) (2).
11. Check to make sure the gear is centered in the
middle tooth (1) before installing the pitman shaft.
12. Install the pitman shaft into the steering gear (Refer to 19 - STEERING/GEAR/PITMAN SHAFT - INSTALLA-
TION).
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 to2 - SUSPENSION/WHEEL ALIGNMENT - STANDARD PROCEDURE).
Page 2464 of 5267

PITMAN SHAFT
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 (1) 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 (1) from the gear.
7. Remove the cover if needed by loosing the
adjuster nut (4), Then removing the cover (3) from the pitman shaft.
DIESEL
1. Separate the pitman arm from the gearbox (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 stub shaft with a 12 point socket (2)
from stop to stop and count the number of turns.
6. Center the stub shaft (4) by rotating it from the stop
1/2 of the total amount of turns.