
Tires
To clean your tires, use a stiff brush with a tire cleaner.
NOTICE: ~~ -
When applying a tire dressing always take care to
wipe
off any overspray or splash from all painted
surfaces on the body or wheels
of the vehicle.
Petroleum-based products may damage the
paint finish.
Sheet Metal Damage
If your vehicle is damaged and requires sheet metal
repair or replacement, make sure the body repair shop
applies anti-corrosion material
to the parts repaired or
replaced to restore corrosion protection.
Finish Damage
Any stone chips, fractures or deep scratches in the finish
should be repaired right away. Bare metal will corrode
quickly and may develop into a major repair expense.
Minor chips and scratches can be repaired with touch-up
materials available from your dealer or other service
outlets. Larger areas
of finish damage can be corrected
in your dealer’s body and paint shop.
6-66
ProCarManuals.com

Replacement Bulbs
Exterior Lamps Quantity Number
Sealed Beam Headlamps 2 H6054
Composite Low-Beam 2 9006
Headlamps
Composite High-Beam
2 9005
Headlamps
Front Marker Lamp
Front Parking and Turn Lamp
Rear Parking Lamp
Rear Stop and
Turn
Lamp
Back-up Lamp
Fender Marker Lamp
Roof Marker Lamp
License Plate Lamp
Center High-Mounted
Stoplamp
Underhood Lamp
Underhood Reel Lamp
2
4
194
2357NA
2
2
3057 3057
1
1
3156
194
194
194
92
1
93
232
Interior Lamps
Dome Lamps
Reading Lamps
Door Courtesy Lamps
Four-
W heel- Drive
Indicator
Four-Wheel-Drive Shift
Lever
Instrument Panel
Compartment Lamp
Ashtray Lamp
Sunshade Vanity Mirror
Quantity
2
2
2
1
1
1
1
1
Number
21 1-2
211-2 194 194
194
194
194 74
ProCarManuals.com

Capacities and Specifications
Please refer to “Recommended Fluids and Lubricants” in the Index for more information.
Engine Type VIN Code Spark Plug Gap
“VORTEC”
4300 V6 W 0.060 inches (1.52 mm)
“VORTEC” 5000 V8 M 0.060 inches (1.52 mm)
“VORTEC”
5700 V8 R 0.060 inches (1.52 mm)
“VORTEC” 7400
V8 J 0.060 inches (1.52 mm)
Wheels and Tires
Model
C 1500
K 1500 and C/K 2500
C/K 2500 (w/C6P)
C/K
3500 (Single Rear Wheels)
C/K 3500 (Dual Rear Wheels)
C 3500 HD Front
C 3500 HD Rear
Tire Pressure
Description Torque
5 bolts (14mm) 140 lb-ft (190 N-m)
6 bolts (14mm) 140 lb-ft ( 190 Nam)
8 bolts (14mm)
140 lb-ft ( 190 N-m)
8 bolts (14mm) 140 lb-ft ( 190 N-m)
8 bolts (14mm) 140 lb-ft ( 190 N-m)
5 bolts (5/8 in.) 175 lb-ft (240 N-m)
10 bolts (5/8 in.) 175
lb-ft (240 N-m)
See the CertificatiodTire label on the rear edge of the driver’s door
or the incomplete vehicle document
in the cab.
6-76
ProCarManuals.com

Normal Maintenance Replacement Parts
Replacement part numbers listed in this section are based on the latest information available at the time of printing,
and are subject to change. If a part listed
in this manual is not the same as the part used in your vehicle when it was
built, or if you have any questions, please contact your GM truck dealer.
These specifications are for information only. If you have any questions, see the service manual for the chassis or
refer to the body manufacturer's publications.
VIN Code
Oil Filter*
Air Cleaner Filter*
PCV Valve*
Spark Plugs*
Fuel Filter* Wiper Blades**
Wiper Blade Type
Wiper Blade Length
W
PF52
A
1 300C
CV746C
4 1-932
GF626
22 154886
Trico 18 inches (45.0 cm)
M
PF1218T
A 1300C
CV796C
41 -932 GF626
22154886
Trico
18 inches (45.0 cm)
*AC part number
**GM part number
?Use a PF52 oil filter if your vehicle has four-wheel drive.
R
PF1218T
A 1300C
CV796C
4 1-932
GF626
22154886
Trico 18 inches (45.0 cm)
J
PF1218
A 1300C
cv774c
4 1-932
GF626
22154886
Trico
18 inches (45.0 cm)
6-77
ProCarManuals.com

Part A: Scheduled Maintenance
Services
Using Your Maintenance Schedule
We at General Motors want to help you keep your vehicle
in good working condition. But we don’t know exactly
how you’ll drive it.
You may drive very short distances
only
a few times a week. Or you may drive long distances
all the time in
very hot, dusty weather. You may use your
vehicle
in making deliveries. Or you may drive it to work,
to do errands or
in many other ways.
Because of all the different ways people use their GM
vehicles, maintenance needs vary. You may even need
more frequent checks and replacements than you’ll find
in
the schedules in this section. So please read this
section and note how you drive. If you have any
questions
on how to keep your vehicle in good
condition, see your GM dealer.
This part tells you the maintenance services you should
have done and when you should schedule them. If you
go to your dealer for your service needs, you’ll know
that GM-trained and supported service people will
perform the work using genuine
GM parts.
The proper fluids
and lubricants to use are listed in Part D.
Make sure whoever services your vehicle uses these. All parts should
be replaced and all necessary repairs done
before you
or anyone else drives the vehicle.
These schedules are for vehicles that:
0
0
0
0
carry passengers and cargo within recommended
limits. You will find these limits on your vehicle’s
Certificatioflire label. See “Loading Your Vehicle”
in the Index.
are driven
on reasonable road surfaces within legal
driving limits.
are driven off-road in the recommended manner. See
“Off-Road Driving With Your Four-Wheel-Drive
Vehicle’’
in the Index.
use the recommended fuel. See “Fuel”
in the Index.
Selecting the Right Schedule
First you’ll need to decide which of the two schedules is
right for your vehicle. Here’s how to decide which
schedule to follow:
Gasoline engine vehicles and diesel engine vehicles
have different maintenance requirements. If you have a
diesel engine, follow
a schedule designated for diesel
engine vehicles only.
See the Diesel Engine Supplement for diesel engine
maintenance schedules.
7-4
ProCarManuals.com

Maintenance Schedule
-
Short Trip/City Definition -- Gasoline Engines
Follow the Short TripKity Maintenance Schedule if any
one of these conditions is true for your vehicle:
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures
are below freezing.
driving in stop-and-go traffic).
off-road frequently.
Most trips include extensive idling (such as frequent
You operate your vehicle in dusty areas or
You frequently tow a trailer.
If the vehicle is used for delivery service, police, taxi
One of the reasons you should follow this schedule if you
operate
your vehicle under any of these conditions is that
these conditions cause engine
oil to break down soonel:
Short Trip/City Intervals -- Gasoline Engines
Every
3,000 Miles (5 000 km): Engine Oil and Filter
or other commercial application.
Change (or
3 months, whichever occurs first). Chassis
Lubrication (or
3 months, whichever occurs first). Drive
Axle Service (or
3 months, whichever occurs fmt).
Short Trip/City Intervals -- Gasoline Engines
Every 6,000 Miles (10
000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Shields and
Underhood Insulation Inspection (GVWR above
8,500 lbs. only). Front Wheel Bearing Repack (2WD
only) (or at each brake relining, whichever occurs first).
Every 30,000 Miles (50 000 km): Fuel Filter Replacement.
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (vehicles over
8600 GVWR or
driven under severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection. Fuel Tank, Cap and Lines
Inspection. Exhaust Gas Recirculation System
Inspection. Evaporative Control System Inspection.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Positive
Crankcase Ventilation (PCV) Valve Inspection.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
These intervals only summarize maintenance services.
Be sure to follow the complete maintenance schedule
on the following pages.
ProCarManuals.com

Maintenance Schedule
Follow this maintenance schedule only if none of the
conditions from the Short Trip/City Maintenance
Schedule is true.
Da not use this schedule if the vehicle
is used for trailer towing, driven in a dusty area or used
off paved roads. Use the Short Trip/City schedule for
these conditions.
Driving a vehicle with afully warmed engine under
highway conditions causes engine
oil to break
down slower:
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every
12 months, whichever occurs first).
Chassis Lubrication (or every 12 months, whichever
occurs first). Drive Axle Service. Tire Rotation.
Underhood Insulation Inspection (GVWR above
8,500 lbs. only).
Every 15,000 Miles (25 OOO km): Shields and
I
1 Long Trip/Highway Intervals -- Gasoline Engines ~~~ ~
~ ~~
Every 30,000 Miles (50 000 km): Fuel Filter
Replacement. Front Wheel Bearing Repack
(2WD only)
(or at each brake relining, whichever occurs fiist).
Transmission Service (vehicles over
8600 GVWR or
driven under severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection. Fuel
Tank, Cap and Lines
Inspection. Exhaust Gas Recirculation System
Inspection. Evaporative Control System Inspection.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Positive
Crankcase Ventilation (PCV) Valve Inspection.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
Every 50,000 Miles (83 000 km): Automatic
These intervals only summarize maintenance services.
Be sure to
follow the complete maintenance schedule
on the following pages.
7-6
ProCarManuals.com

I Short TripKity Maintenance Schedule -- Gasoline Engines I
0 For Two-Wheel-Drive vehicles only: Clean
and repack the front wheel bearings (or at
each brake relining, whichever occurs first).
0 Vehicles With GVWR Above 8,500 lbs.
Only: Inspect shields and underhood
insulation for damage or looseness. Adjust
or replace as required.
This is a Noise Emission
Control Service. Applicable only to vehicles sold in
the United States.
I DATE ACTUAL MILEAGE SERVICED BY
18,000 Miles (30 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components (or every
3 months, whichever occurs first).
(See footnote
#.)
0 Check readfront axle fluid level and add fluid
as needed. Check constant velocity joints and
axle seals for leaking. (See footnote
** .)
0 Rotate tires. See “Tire Inspection and
Rotation” in the Index for proper rotation
pattern and additional information.
(See footnote
+.)
DATE SERVICED BY: ACTUAL MILEAGE
7-11
ProCarManuals.com