Page 348 of 412

Short Trip/City Scheduled Maintenance
7-9
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at 150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles (240 000 km).
See ªOwner Checks and Servicesº and 
ªPeriodic Maintenance Inspectionsº following.
Footnotes
 The 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, kingpin bushings,
steering linkage and rear driveline center splines.
+ A good time to check your brakes is during tire
rotation. See ªBrake System Inspectionº under
ªPeriodic Maintenance Inspectionsº in Part C of 
this schedule.
** Drive axle service. See ªRecommended Fluids and
Lubricantsº in the Index for proper lubricant to use: 
Check fluid level and add fluid as needed. If driving
in dusty areas or when towing a trailer, drain fluid
and refill every 15,000 miles (25 000 km).
If your vehicle has a locking differential, drain fluid
and refill at first engine oil change.
More frequent lubrication may be required for
heavy
-duty use. 
     
        
        Page 372 of 412

Long Trip/Highway Scheduled Maintenance
7-33
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at 150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles (240 000 km).
See ªOwner Checks and Servicesº and 
ªPeriodic Maintenance Inspectionsº following.
Footnotes
 The 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, kingpin bushings,
steering linkage and rear driveline center splines.
+ A good time to check your brakes is during tire
rotation. See ªBrake System Inspectionº under
ªPeriodic Maintenance Inspectionsº in Part C of 
this schedule.
** Drive axle service. See ªRecommended Fluids and
Lubricantsº in the Index for proper lubricant to use: 
Check fluid level and add fluid as needed.
If your vehicle has a locking differential, drain fluid
and refill at first engine oil change. 
     
        
        Page 395 of 412

7-56
USAGEFLUID/LUBRICANT
Hydraulic 
Brake SystemDelco Supreme 11 Brake Fluid
(GM Part No. 12377967 or
equivalent DOT
-3 brake fluid).
Windshield
Washer SolventGM Optikleen Washer Solvent
(GM Part No. 1051515) 
or equivalent.
Parking Brake
Cable GuidesChassis Lubricant (GM Part 
No. 12377985 or equivalent) or
lubricant meeting requirements 
of NLGI # 2, Category LB 
or GC
-LB.
Power 
Steering SystemGM Power Steering Fluid 
(GM Part No. 1052884 
- 1 pint,
1050017 
- 1 quart, or equivalent).
Automatic
TransmissionDEXRON-III Automatic
Transmission Fluid.
USAGEFLUID/LUBRICANT
Key Lock
CylindersMulti-Purpose Lubricant,
Superlube (GM Part 
No. 12346241 or equivalent).
Chassis
LubricationChassis Lubricant (GM Part 
No. 12377985 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. 1051344 or equivalent).
Rear Axle
(Standard
Differential)SAE 80W-90 Axle Lubricant 
(GM Part No. 1052271 
or equivalent). 
     
        
        Page 396 of 412
7-57
USAGEFLUID/LUBRICANT
Rear Axle
(Locking
Differential)Axle Lubricant; use only GM 
Part No. 1052271. Do not add
friction modifier.
Propshaft
Splines and
Universal JointsChassis Lubricant (GM Part 
No. 12377985 or equivalent) 
or lubricant meeting requirements
of NLGI # 2, Category LB 
or GC
-LB.
One-Piece
Propshaft SplineSpline Lubricant, Special
Lubricant (GM Part 
No. 12345879) or lubricant
meeting requirements 
of GM 9985830.
USAGEFLUID/LUBRICANT
Hood Latch
Assembly,
Secondary Latch,
Pivots, Spring
Anchor and
Release PawlLubriplate Lubricant Aerosol
(GM Part No. 12346293 or
equivalent) or lubricant meeting
requirements of NLGI # 2,
Category LB or GC
-LB.
Hood HingesMulti-Purpose Lubricant,
Superlube (GM Part 
No. 12346241 or equivalent).
Weatherstrip
ConditioningDielectric Silicone Grease (GM
Part No. 12345579 or equivalent).
Weatherstrip
SqueaksSynthetic Grease with Teflon,
Superlube (GM Part 
No. 12371287 or equivalent).