2003 CHEVROLET S10 differential

Front Axle
When to Check and Change Lubricant
Refer to the Maintenance Schedule to determine
how often to check the lubricant and when to change it.
See
Part A: Scheduled Maintenance Services on
page 6-4.
How to Check Lubricant
To get an accurate reading, the vehicle should be on a
level surface.
If the level is below the bottom of the ®ller plug hole,
you may need to add some lubricant.
When the differential is cold, add enough lubricant to
raise the level to 1/2 inch (12 mm) below the ®ller
plug hole.
When the differential is at operating temperature
(warm), add enough lubricant to raise the level to the
bottom of the ®ller plug hole.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. SeePart D: Recommended
Fluids and Lubricants on page 6-33.
5-53

ApplicationCapacities
English Metric
Differential Fluid
Rear Axle
Front Axle4.0 pints
2.6 pints1.9 L
1.2 L
Air Conditioning Capacity
Air Conditioning Refrigerant R134a 1.8 lbs 0.79 kg
All capacities are approximate. After re®ll, the level
mustbe checked.
All capacities are approximate. When adding, be sure to ®ll to the appropriate level or as recommended in this
manual. See
Part E: Maintenance Record on page 6-35
Capacities and Speci®cations
Type VIN Code Transmission Spark Plug Gap Firing Order
2200
L4HAutomatic
Manual0.040 inches
(1.01 mm)1-3-4-2
4300
V6XAutomatic
Manual0.060 inches
(1.52 mm)1-6-5-4-3-2
5-100

Every 100,000 Miles (166 000 km):Spark Plug Wire
Inspection. Spark Plug Replacement. 4.3L V6 Engine
Only: Positive Crankcase Ventilation (PCV) Valve
Inspection.
Every 150,000 Miles (240 000 km):Cooling System
Service (or every 60 months, whichever occurs
®rst). Engine Accessory Drive Belt Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
Short Trip/City Scheduled
Maintenance
The services shown in this schedule up to 100,000 miles
(166 000 km) should be repeated after 100,000 miles
(166 000 km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240 000 km) should be repeated at the same interval
after 150,000 miles (240 000 km) for the life of this
vehicle.
See
Part B: Owner Checks and Services on page 6-26andPart C: Periodic MaintenanceInspections on
page 6-31.
Footnotes
²The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
#Lubricate the front suspension, ball joints, steering
linkage, parking brake cable guides, propshaft splines,
universal joints, constant velocity joint and brake
pedal springs.
+A good time to check your brakes is during tire
rotation. See Brake System Inspection on page 6-32.
**
Drive axle service. See Part D: Recommended Fluids
and Lubricants on page 6-33for proper lubricant to use:
·Check ¯uid level and add ¯uid as needed. If driving in
dusty areas or when towing a trailer, drain ¯uid and
re®ll every 15,000 miles (25 000 km).
·If your vehicle has a locking differential, drain ¯uid
and re®ll at ®rst engine oil change.
·More frequent lubrication may be required for
heavy-duty or off-road use.
6-7

Footnotes
²The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
#Lubricate the front suspension, ball joints, steering
linkage, parking brake cable guides, propshaft splines,
universal joints, constant velocity joint and brake
pedal springs.
+A good time to check your brakes is during tire
rotation. See Brake System Inspection on page 6-32.
**
Drive axle service. See Part D: Recommended Fluids
and Lubricants on page 6-33for proper lubricant
to use:
q
Check ¯uid level and add ¯uid as needed.
qIf your vehicle has a locking differential, drain ¯uid
and re®ll at ®rst engine oil change.
7,500 Miles (12 500 km)
qChange engine oil and ®lter (or every 12 months,
whichever occurs ®rst).An Emission Control
Service.
qLubricate chassis components (or every 12 months,
whichever occurs ®rst).(See footnote #.)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
(See footnote **.)
qRotate tires. SeeTire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
15,000 Miles (25 000 km)
qChange engine oil and ®lter (or every 12 months,
whichever occurs ®rst).An Emission Control
Service.
qLubricate chassis components (or every 12 months,
whichever occurs ®rst).(See footnote #.)
qInspect engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-19for more information.An
Emission Control Service. (See footnote ².)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
(See footnote **.)
6-19

Part D: Recommended Fluids and
Lubricants
Fluids and lubricants identi®ed below by name, part
number or speci®cation may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil with the American
Petroleum Institute Certi®ed for
Gasoline Engines starburst symbol
of the proper viscosity. To determine
the preferred viscosity for your
vehicle's engine, see
Engine Oil on
page 5-15.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
ž
Coolant. SeeEngine Coolant on
page 5-27.
Hydraulic Brake
SystemDelco Supreme 11žBrake Fluid or
equivalent DOT-3 brake ¯uid.
Windshield
Washer SolventGM Optikleen
žWasher Solvent or
equivalent.
Hydraulic
Clutch SystemHydraulic Clutch Fluid (GM Part
No. U.S. 12345347, in Canada
10953517, or equivalent DOT-3
brake ¯uid).
Power Steering
SystemGM Power Steering Fluid (GM Part
No. U.S. 1052884, in Canada
993294, or equivalent).
Usage Fluid/Lubricant
Manual
Transmission
with V6 EngineSynchromesh Transmission Fluid
(GM Part No. U.S. 12345349, in
Canada 10953465, or equivalent).
Manual
Transmission
with L4 EngineFriction Modi®ed Synchromesh
Transmission Fluid (GM Part
No. U.S. 12377916, in Canada
10953509).
Automatic
TransmissionDEXRON
ž-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
ž
(GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
Chassis
LubricationChassis Lubricant (GM Part
No. U.S. 12377985, in Canada
88901242, or equivalent) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Front Wheel
BearingsWheel bearing lubricant meeting
requirements of NLGI #2, Category
GC or GC-LB (GM Part No. U.S.
1051344, in Canada 993037, or
equivalent).
Front and Rear
Axle (Standard
Differential)SAE 80W-90 Axle Lubricant (GM
Part No. U.S. 1052271, in Canada
10950849, or equivalent).
Rear Axle
(Locking
Differential)Axle Lubricant; use only GM Part
No. U.S. 1052271, in Canada
10950849.
Do not add friction
modi®er.
6-33