1993 DODGE TRUCK oil change

•

LUBRICATION
AND
MAINTENANCE
0 - 23 GEAR SHIFTER BOOTS
Inspect the shifter boots periodically for stone and
heat damage. Replace, if necessary.
SEVERE DRIVING CONDITIONS The interval between the transmission drain and
refill maintenance should be decreased to:
• NV4500 manual transmission—every 29 000 km (18,000 miles)
• Automatic transmission—every 19 000 km (12,000
miles)
A severe driving condition includes:
• Extended operation with heavy cargo loads
• Driving in deep mud or snow
• Off-road operation (4WD)
• Trailer towing
• Operation as a commercial vehicle
• Snow plowing
MANUAL TRANSMISSIONS

INSPECTION/LUBE
OIL
LEVEL
The transmission should be checked for leaks when
other service is necessary under the vehicle. To check
the lube oil level, remove the fill hole plug (Fig. 2 ). If the level is below the bottom of the fill hole, raise
the level to the bottom of the fill hole with:
• Castrol Syntorq for NV4500 transmissions
• SAE 5W-30 engine oil (API Service SG, SG/CD or
SG/CE) for Getrag 360 transmissions.

Fig.
2 NV4500 Manual
Transmission

DRAIN
AND
FILL
The NV4500 transmission fluid should be changed
according to the intervals listed in the Manual
Transmission—Drain & Refill Intervals chart below.

Also,
refer to the Fluid Capacities chart.
AUTOMATIC TRANSMISSIONS

FLUID
LEWEL
It is recommended that the fluid (ATF) level in au­
tomatic transmissions be checked while involved
with other underhood maintenance.
Vehicle operation with an incorrect ATF level
will greatly reduce the life of the transmission.
Fig.
3 Getrag 360 Manual
Transmission

MANUAL TRANSMISSION-DRAIN & REFILL INTERVALS
Normal

Service
Light
Duty
Cycle

60 000
km
37,500
miles

Heavy
Duty
Cycle

58 000
km
36,000
miles

Severe
Service
29 000
km
18,000
miles

J9000-43

The condition of the ATF also should be deter­
mined. If the ATF is dark in color and has a strong odor, the fluid should be changed. Also the filter should be replaced and the bands adjusted.
The following procedure must be used to check the
automatic transmission fluid (ATF) level.
(1) Position the vehicle on level ground.
(2) Operate the engine at idle speed.
(3) Apply the parking brake.
(4) Place the gear selector in N (neutral).
(5) Remove the dipstick from the tube. Wipe it
clean and determine if the ATF is hot or warm.
Hot ATF has a temperature of approximately
82°C (180°F). Warm ATF is when its temperature
is between 29-52°C (85-125°F). (6) Wipe the dipstick clean and completely insert it
into the tube. Remove the dipstick from the tube and
observe the ATF level.
(7) If the ATF is hot, the level should be in the
crosshatched area that is marked OK.
(8) If the ATF is warm, the level should be be­
tween the two dimples.

0
- 24
LUBRICATION
AND
MAINTENANCE

•
CAUTION:
Do not
overfill
the
transmission.
(9) Adjust
the
level
of the ATF
accordingly.
It
is
important
to use the
correct fluid
in an

automatic transmission. MOPAR®ATF PLUS
(ATF Type
7176)
should
be
used. Dexron®
II

ATF
can be
used
if the
recommended fluid
is not
available,
(10) Insert
the
dipstick into
the
tube.

DRAIN, FILTER CHANGE, BAND ADJUSTMENT AND REFILL
The chart below lists
the
intervals
at
which
the

transmission should
be
serviced. Also, refer
to the

Fluid Capacities chart
for
fill capacity.
AUTOMATIC TRANSMISSION SERVICE
IN-
TERVALS

Normal

Usage
Light
Duty
Cycle

60 000
km
37,500
miles

Heavy
Duty
Cycle

38
000 km 24,000
miles

Severe
Usage
19 000 km 12,000
miles

J9100-19

It
is
very important
to use the
correct fluid
in

an automatic transmission. MOPAR®ATF PLUS
(ATF Type
7176)
should
be
used.
An
equivalent
Dexron®
II ATF
could
be
used only
if the
recom­
mended fluid
is not
available.
The torque converter does
not
have
a
drain plug.
No attempt should
be
made
to
drain
the
converter.
Refer
to
Group
21
—Transmissions
for
transmission
drain
and
refill procedures.

TRANSFER
CASE
(4WD
VEHICLES)
INSPECTION The NP205
and
NP241 transfer cases fluid level
should
be
checked whenever maintenance
is
neces­
sary under
the
vehicle.

FLUID
LEVEL
The vehicle must
be
level when
the
fluid level
is checked.
The transfer case drain fill hole plugs
are
located
at
the
rear
of the
housing (Figs.
4 and 5).

Determine
the
transfer case fluid level according
to

the following procedure.
(1) Raise
and
support
the
vehicle.
(2) Remove
the
fill hole plug (Figs.
4 and 5)
from
the transfer case.
The
fluid level should
be at the

bottom edge
of the
fill hole.
The
level
can be
slightly
below
the
bottom edge
of the
fill hole
if the
fluid
is
cold.
(3)
If the
level
is not
acceptable, raise
the
fluid
level
to the
bottom edge
of the
fill hole with: • MOPAR®ATF PLUS
or an
equivalent Dexron
II®

ATF
for
NP241 transfer case
• Multi-purpose gear
oil (API GL-5) or
engine
oil

(API
SG,
SG/CD
OR
SG/CE)
for
NP205 transfer

cases.

Add fluid
in
small amounts
to
raise
the
level. (4) Install
the
fill hole plug (Figs.
4 and 5).

Tighten
the
fill hole plug
to 27 N-m (20
ft-lbs) torque.
(5) Remove
the
support
and
lower
the
vehicle.

Fig.
4
HP241 Transfer
Case
Fig.
5
NP205 Transfer
Case

FLUID DRAIN
AND
REFILL The transfer case fluid should
be
changed every
60

000
km
(37,500 miles).
For
vehicles subject
to the

HEAVY DUTY CYCLE Maintenance Schedule,
a 58

000
km
(36,000 miles) interval
is
recommended.
(1) Raise
and
support
the
vehicle.
(2) Remove
the
fill hole plug (Figs.
4 and 5)
from
the transfer case. (3) Place
an
appropriate container under
the
trans­
fer case drain hole plug (Figs.
4 and 5).
(4) Remove
the
drain hole plug. Drain
the
fluid
from
the
transfer case into
the
container.

•

LUBRICATION
AND
MAINTENANCE
0 - 25
CAUTION:
Do not
over-tighten
the
drain
and fill
hole

plugs.
Over-tightening
can strip the
hole
threads

and/or crack
the
aluminum housing.

(5) Install the drain hole plug (Figs. 4 and 5) in
the transfer case. Tighten the drain hole plug to 27 N*m (20 ft-lbs) torque. (6) Fill the transfer case to the bottom edge of the
fill hole (Figs. 4 and 5) with: • MOPAR®ATF PLUS or an equivalent Dexron II®
ATF for NP241 transfer cases
• Multi-purpose gear oil (API GL-5) or engine oil (API SG, SG/CD or SG/CE) for NP205 transfer cases. (7) Install the fill hole plug (Figs. 4 and 5) in the
transfer case. Tighten the plug to 27 N«m (20 ft-lbs) torque.
(8) Remove the support and lower the vehicle.
FLUID SPECIFICATION
• MOPAR®ATF PLUS or an equivalent Dexron II®
ATF for NP241 transfer cases • Multi-purpose gear oil (API GL-5) or engine oil (API SG, SG/CD or SG/CE) for NP205 transfer cases
NP20I
MULTI-PURPOSE GEAR OIL/ENGINE
OIL
SELECTION

MULTI-PURPOSE GEAR OIL-if the anticipated
minimum temperature will: • Be above 32°C (90°F)-use SAE 140, API GL-5;
• Decrease to as low as -23°C (-10°F)-use SAE 90,
API GL-5; and • Be below -23°C (-10°F)-use SAE 80, API GL-5. ENGINE OIL—if the anticipated minimum tem­
perature will be: ® Above 0°C (32°F)-use SAE 50, API SG, SG/CD or
SG/CE;
• Below 0°C (32°F)-use SAE 30, API SG, SG/CD or SG/CE.
SHIFT MECHANISM-NP241 AND NP205 The transfer case shift mechanism should be
cleaned and lubricated as necessary.
Lubricate the pivot, the sliding contact areas and
the shift linkage pivot ends with light-weight engine oil (Figs. 6 and 7).

AXLES
INSPECTION/LUBRICANT LEVEL For normal vehicle operation, periodic axle lubri­
cant level checks are not necessary. The exterior of
the axle housing should be inspected for leakage. Check the lubricant level to confirm the leakage.

LUBRICANT LEVEL
(1) Raise the vehicle with an axle or wheel type
hoist. Support the vehicle.
(2) The rear axle differential housings have a rub­
ber, PRESS-IN type fill plug (Fig. 8). Pry the fill
TRANSMISSION

ASSEMBLY
GEARSHIFT
MECHANISM TRANSFER CASE

SCREWS
(2)
50
FT. LBS.
(68 N*m)
CLAMP
SHIFT
ROD

SCREW

80 IN.
LBS.

(9 N*m)
RP1091
Fig.
6 Shift
Mechanism
Lubrication—NP241 Transfer
Case

Fig.
RY682
7 Shift
Mechanism
Lubrication—NP205 Transfer

Case

plug from the differential housing. The front axle (4WD vehicles)*differential housings have a thread­
ed-type fill plug (Fig. 9). Un-thread the fill plug from
the differential housing.
(3) The lubricant level should be within 12 mm
(1/2 in) of the fill hole for the 8.25 and 9.25 rear ax­

les.
The lubricant level should be between 12mm (1/2
in) and 24mm (1 in.) of the fill hole for the Dana ax­

les.

(4) If necessary, add lubricant to raise the level to
the acceptable position.
(5) Install the fill hole plug in the differential
housing (Figs. 8 and 9).

DRAIN
AND
REFILL
Periodic axle lubricant change for normal vehicle
operation is not necessary. Refer to the chart below-

0
- 28
LUBRICATION
AND
MAINTENANCE

•
CHASSIS AND BODY

page

Body
Component Mechanisms
32
Front
Suspension
Ball
Joints
28

Front
Wheel Bearings
29

Headlamps
32

Lower
and
Upper Suspension
Arm
Bushings
.... 30

Manual
Steering Gear
28

STEERING
LINKAGE

INSPECTION When
a
vehicle
is
raised
for
maintenance under
the vehicle,
all
steering components should
be
checked.
LUBRICATION SCHEDULE The steering linkage
is
lubricated with
a
chassis
lubricant. However,
it is
recommended that
the
link­
age
be
inspected
and
lubricated after each:
•
24 000 km
(15,000 miles) interval
or
every
6

months,
for 2WD
vehicles subject
to the
LIGHT
DUTY CYCLE Maintenance Schedule
•
9 600 km
(6,000 miles) interval
or
every
6
months,
for
2WD
vehicles subject
to the
HEAVY DUTY
CY­
CLE Maintenance Schedule
•
12 000 km
(7,500 miles) interval
or
every
6

months,
for 4WD
vehicles subject
to the
LIGHT DUTY CYCLE Maintenance Schedule
•
9 600 km
(6,000 miles) interval
or
every
6
months,
for
4WD
vehicles subject
to the
HEAVY DUTY
CY­
CLE Maintenance Schedule.
LUBRICATION (1) Inspect
the
steering linkage
for
looseness
and

excessive wear. (2) Replace,
all
ruptured seals
and
damaged steer­
ing linkage components. Damaged seals should
be re­

placed
to
prevent leakage
and
contamination
of the
lubricant.

CAUTION:
Use
care
to
prevent lubricant from
con­

tacting
the
brake rotors.

(3) Lubricate
the
steering linkage:
• Clean
the
Zerk type lubrication fittings
on the tie-

rod
and
center link ball-stud ends
• Lubricate
the
ball studs with MOPAR®Multi-Mile- age Lubricant
• Wipe
the
excess lubricant from
the
exterior sur­
faces
of the
ball joints
page

Power
Brake System
30
Power
Steering System
. . 29

Rear
Wheel Bearings
30

Speedometer Cable
33

Steering Linkage
28

Tires
32

FRONT
SUSPENSION
BALL JOINTS

INSPECTION When
a
vehicle
is
raised
for
lubrication/general
maintenance,
the
ball joints should
be
inspected.
LUBRICATION SCHEDULE The front suspension ball joints
are
lubricated dur­
ing manufacture with
a
long-life chassis lubricant.
However,
it is
recommended that
the
ball joints
be

inspected
and the
studs lubricated:
•
At
each
36 000 km
(22,500 miles) interval
or
every
2 years,
for
vehicles subject
to the
LIGHT DUTY
CY­
CLE Maintenance Schedule
•
At
each
9 600 km
(6,000 miles) interval
or
every
2

years,
for
vehicles subject
to the
HEAVY DUTY
CY­
CLE Maintenance Schedule.
4WD vehicles that
are
frequently driven
off-

road should
be
lubricated
at
every engine
oil
change.
LUBRICATION (1) Inspect
the
front suspension. Examine
the
ball
studs
for
looseness
and
excessive wear. (2) Replace
all
torn ball-stud seals
and
damaged
ball joints. Damaged seals should
be
replaced
to
pre­ vent leakage
and
contamination.

CAUTION:
Use
care
to
prevent lubricant from
con­

tacting
the
brake rotors.

(3) Lubricate
the
ball studs:
• Clean
the
Zerk type lubrication fittings
on the

ball-stud ends
• Lubricate
the
ball studs with MOPAR®Multi-Mile-age Lubricant
• Wipe
the
excess lubricant from
the
exterior sur­
faces
of the
ball joints

MANUAL
STEERING
GEAR

LUBRICATION Manual steering gears
are
permanently lubricated
during manufacture. Periodic lubrication
is not
nec­
essary.

0
- 32
LUBRICATION
AND
MAINTENANCE

•

Fig.
5 Parking Brake Ratio Lever Lubrication (2) Note any indication of brake overheating,
wheel dragging or the vehicle pulling to one side.
(3) Evaluate any performance complaints received
from the owner/operator. (4) Repair the brake system as necessary (refer to
Group 5—Brakes for additional information and ser­
vice procedures).

BODY
COMPONENT
MECHANISMS
LUBRICATION REQUIREMENTS
All operating mechanisms and linkages should be
lubricated when necessary. This will maintain ease of operation and provide protection against rust and
excessive wear. The door weatherstrip seals should
be lubricated to prolong their life as well as to im­ prove door sealing.

LUBRICANT SPECIFICATIONS
All applicable exterior and interior vehicle operat­
ing mechanisms should be:
• Inspected • Cleaned
• All the pivoting/sliding contact areas on the mech­ anisms should then be lubricated.
MOPAR®Multi-Mileage Lubricant or an equiva­
lent, should be used to lubricate the mechanisms.
The door weatherstrip seals should be lubricated
with silicone lubricant spray. Refer to the Body Lu­
bricant Specifications chart below for additional lu­
bricant applications.

LUBRICATION
(1) When necessary, lubricate the cab and cargo
box operating mechanisms with the specified lubri­
cants.

(2) Apply silicone lubricant to a cloth and wipe it
on door seals to avoid over-spray that can soil pas­
senger clothing. (3) Before applying lubricant, the component
should be wiped clean. After lubrication, any excess
lubricant should be removed.
(4) The hood latch, latch release mechanism, latch
striker and safety latch should be lubricated periodi­
cally.
(5) The door lock cylinders should be lubricated 2
times each year (preferably autumn and spring): • Spray a small amount of lock cylinder lubricant di­
rectly into the lock cylinder
• Apply a small amount to the key and insert it into
the lock cylinder • Rotate it to the locked position and then back to
the unlocked position several times
• Remove the key. Wipe the lubricant from it with a
clean cloth to avoid soiling of clothing.

TIRES
RECOMMENDED MAINTENANCE
The condition of the tires should be inspected. The
inflation pressures tested/corrected at the same time as the engine oil is changed and the oil filter is re­
placed.
The tires/wheels should be rotated periodically to
ensure even tread wear. The tires/wheels should be
rotated at the first 12 000 km (7,500-miles) interval.
Thereafter, at each 24 000 km (15,000-miles) inter­
val.
INSPECTION
Inspect the tires for excessive wear, damage. Test
the tires for the recommended inflation pressure and adjust the pressure accordingly. Refer to the tire in­
flation pressure decal located on the left door face. Also to Group 22—Tires And Wheels for tire pres­sure charts, tire replacement, and treadwear indica­

tors.

ROTATION
Tires/wheels should be rotated according to the rec­
ommended interval. The first tire/wheel rotation is
the most important for establishing the prevention of uneven tread wear. After rotation, adjust the tire in­
flation pressure to the air pressure recommended on
the decal located on the left door face.
Refer to Group 22—Tires And Wheels for the rec­
ommended method of tire/wheel rotation.

HEADLAMPS

MAINTENANCE SCHEDULE
Every six months check the headlamp beams to en­
sure that the headlamp beams are correctly posi­
tioned.

AIM
ADJUSTMENT
Refer to Group 8L—Lamps for headlamp aim ad­
justment procedures.

2
- 42
FRONT
SUSPENSION
AND
AXLE

DIFFERENTIAL HOUSING HAMMER
DRIVER
HANDLE
YOKE
HOLDING TOOL
C-3281

Fig.
71 Seating Pinion Bearings SPACER
J9002-91

DEPTH
SHIMS
HERE
REAR
PINION

BEARING

SHAFT

BEARING
CAP ARBOR
J9203-53

Fig.
72 Depth Shim(s) Selection from the thickness of the depth shim(s). If the num­
ber is 0, no change is necessary.
(9) Remove the tools from the differential housing.
(10) Remove the rear bearing cup from housing
(Fig. 73). Use Remover D-162 and Handle C-4171. (11) Position depth shims in housing rear bearing
cup bore.
(12) Install the pinion rear bearing cup (Fig. 70)
with Installer D-145 and Handle C-4171.
Ensure the cup is correctly seated. (13) If the depth of mesh has been followed accord­
ing to the instructions above, good gear teeth contact
should exist.
(14) Install the rear bearing (and slinger if used)
on the pinion gear with Installer W-262 until com­
pletely seated (Fig. 74).
(15) Install pinion in housing bore.
(16) Assemble preload shims onto pinion and in­
stall the pinion gear in housing. (17) Install pinion front bearing, oil slinger, yoke,
washer and nut. Install the yoke with Installer C-3718 and Wrench C-3281 (Fig. 75).
J9203-58

Fig.
73 Rear Bearing Cup
Removal
PRESS
•

DRIVE

PINION
GEAR

SHAFT

REAR BEARING
^
INSTALLATION
TOOL
DRIVE

PINION
GEAR
OIL

SUNGER

J9302-68

Fig.
74
Pinion
Rear Bearing
Installation
(18) Tighten the yoke nut to 271-298 N-m (200-220
ft. lbs.) torque.
(19) Check bearing preload torque with an inch
pound torque wrench (Fig. 76). The torque necessary to rotate the pinion gear should be;
• Original Bearings — 1 to 3 N-m (10 to 20 in. lbs.)
• New Bearings — 2 to 5 N-m (20 to 40 in. lbs.) If the preload torque is not within the specified tol­
erance, correct the shim thickness accordingly (Fig.
77);

2
- 70
FRONT
SUSPENSION
AND
AXLE

• Depth shims are available in O.OOl-ineh incre­
ments from 0.020 inch to 0.038 inch. (8) Note the etched number on the face of the drive
pinion gear (e.g., -0, -1, -2, +1, +2, etc.). The num­
bers represent thousands-of-an-inch deviation from
the standard. If the number is - (negative), add that
value to the required thickness of the depth shim(s).
If the number is + (positive), subtract that value
from the thickness of the depth shim(s). If the num­
ber is 0, no change is necessary.
(9) Remove the tools from the differential housing.
(10) Remove the rear bearing cup from housing
(Fig. 70) with Remover D-162 and Handle C-4171.
HAMMER
DRIVER
HANDLE
PRESS
DRIVE

PINION
GEAR SHAFT

REAR
BEARING' INSTALLATION

TOOL
DRIVE

PINION
GEAR OIL

SUNGER

J9302-68

Fig.
71
Pinion
Rear Bearing
Installation
SPECIAL
TOOL

C-3718
DIFFERENTIAL
HOUSING

J9203-58

Fig.
70 Rear Bearing Cup
Removal
(11) Position depth shims in housing rear bearing
cup bore.
(12) Install the pinion rear bearing cup (Fig. 66)
with Installer D-lll and Handle C-4171. Ensure the cup is correctly seated. (13) If the depth of mesh has been followed accord­
ing to the instructions above, good gear teeth contact should exist.
(14) Install the rear bearing (and slinger if used)
on the pinion gear with Installer C-3095-A until
completely seated (Fig. 71).
(15) Install pinion in housing bore.
(16) Assemble preload shims onto pinion and in­
stall the pinion gear in housing. (17) Install pinion front bearing, oil slinger, yoke,
washer and nut. Install the yoke with Installer C-3718 and Wrench C-3281 (Fig. 72).
(18) Tighten the yoke nut to 339-366 N-m (250-270
ft. lbs.) torque.
SPECIAL

TOOL

C-3281

J9103-21

Fig.
72
Pinion
Yoke
Installation
(19) Check bearing preload torque with an inch
pound torque wrench (Fig. 73). The torque necessary to rotate the pinion gear should be;
• Original Bearings — 1 to 3 N*m (10 to 20 in. lbs.) • New Bearings — 2 to 5 N»m (20 to 40 in. lbs.) If the preload torque is not within the specified tol­
erance, correct the shim thickness accordingly (Fig.
74);

• Increase the preload torque, decrease the shim
thickness

3
- 28
REAR
SUSPENSION
AND
AXLE

•
SURE-GRIP
DIFFERENTIAL
SERVICE

GENERAL
INFORMATION
The Sure-Grip differential
is an
option available
in

the
8 1/4 and 9 1/4
inch rear axles
(Fig. 1).
EXCITER
RING RING

GEAR
DIFFERENTIAL

CASE

BEARING BEARING

J9003-119
Fig.
1
Sure-Grip
Differential

With
the
exception
of the
Sure-Grip differential

case,
all the
axle components
are
identical
to the

standard axle.
The
Sure-Grip
has a
two-piece differ­
ential case.
The
case
is
completely interchangeable
with
a
standard differential case
(Fig. 2).
Sure-Grip differential removal
and
installation
is
same
as
stan­
dard differential.
DIFFERENTIAL

CASE

PINION
GEAR

COIL SPRING LUBRICATION
WELL
SIDE
GEAR

CLUTCH

LUBRICATION
GROOVES

J9003-120

Fig.
2
Sure-Grip
Differential
Components
The action
of a
standard differential will allow
the

rear wheels
to
rotate
at
different speeds when
the ve­

hicle
is
turning. This differential will divide
the en­
gine torque equally between them. This
is a
desirable
and
normal function
of a
differential.
A

Sure-Grip differential transfers additional engine
torque
to the
rear wheel that
has the
better traction surface.
The
Sure-Grip differential allows
the
driving
wheel with better traction
to
develop more driving
torque than
the
other wheel.
The
Sure-Grip
is not a
locking type differential.
IDENTIFICATION Raise both rear wheels
off the
surface
and
rotate
them.
If
both rear wheels rotate
in the
same direc­
tion,
the
vehicle
is
equipped with
a
Sure-Grip differ­ ential. Another method
of
identification
is by

removing
the
housing cover fill hole plug. Examine (with
a
flashlight)
the
differential case components
through
the
lubricant fill hole.
SERVICE INFORMATION When Sure-Grip differential service
is
necessary,
both rear wheels must
be
raised
off the
surface
so
they
are
free
to
rotate.
A Sure-Grip differential case
is not
repairable.
If defective,
it
must
be
replaced
as a
complete
unit only.
Do not
attempt
to
disassemble
and re­

pair
the
case components.
Follow
the
same procedure outlined under Stan­
dard Differential
for
Removal
and
Installation.
DIFFERENTIAL TEST

CAUTION:
Whenever
a
rear axle
is
being
serviced,
RAISE
BOTH
REAR
WHEELS
off the
surface.
A Sure-Grip differential
can be
tested without
re­

moving
the
differential case from
the
housing.
(1) Position
the
vehicle
on a
hoist with
the
ignition

OFF.
Put the
transmission selector lever
in
PARK
(automatic transmission)
or in
first gear (manual
transmission).
(2) Attempt
to
manually rotate each rear wheel.
(3)
If
difficult
to
manually rotate either wheel,
the

Sure-Grip differential
is
functioning normally.
If

easy,
the
differential
is not
functioning normally
and
should
be
replaced.
A Sure-Grip differential case
is not
repairable.
If defective,
it
must
be
replaced
as a
complete
unit only.
Do not
attempt
to
disassemble
and re­

pair
the
case components.
DIFFERENTIAL NOISE Noise complaints involving
a
Sure-Grip should
be

evaluated
to
determine
the
source
of the
noise.
If a

noise occurs while
the
vehicle
is
turning,
the
proba­
ble cause
is
incorrect
or
insufficient gear lubricant. The drain
and
clean procedure should
be
used
for

possible elimination
of the
noise before replacing
the
differential.