
When It’s Time for New Tires
Rust or dirt on
a wheel, or on the parts to which
it
is fastened, can make- wheel nuts become loose
.after
a time. The wheel could come off and cause
an accident. When you change
a wheel, remove
any rust or dirt from places where the wheel
attaches to the vehicle. In an emergency, you can
use a cloth or a paper towel to do this; but be
sure to use
a scraper or wire brush later, if you
need to, to get all the rust or dirt
off. (See
“Changing a Flat Tire” in the Index.) One
way to tell when it’s
time for new tires is
to
check the treadwear
indicators, which will
appear when your tires have
only
1/16 inch (1.6 mm) or
less
of tread remaining.
Some commercial truck
tires may not have
treadwear indicators.
Its
You need a new tire if any of the following statemen
are true:
0 You’can see the indicators at three or more places
around the tire.
You can see cord or fabric showing through the tire’s
rubber.
0 The tread or sidewall is cracked, cut or snagged deep
enough to show cord or fabric.
0 The tire has a bump, bulge or split.
0 The tire has a puncture, cut or other damage that ,
can’t be repaired well because of the size or location
of the damage.
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Wheels and Tires
Model Torque
C 1500, K 1500, C/K 2500, C/K 3500 (Single Rear Wheels) ............................ 140 Ib-ft (190 N-m)
C3500 (Dual
Rear Wheels) ...................................................... 140 Ib-ft (190 N-m)
Tire Pressure ........................... See the Certificationflire label on the rear edge of the driver's door
or the incomplete vehicle document in the cab.
C-3500HD
.................................................................. 175Ib-ft(240N-m)
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 w M
Oil Filter PF52
PF1218T
Air
Cleaner Filter A 1300C A 1300C
PCV Valve CV746C CV796C
Spark Plugs 4 1-932 4 1-932
Fuel Filter GF626
GF626
Wiper Blades 22 154886 221 54886
Type Trico Trico
Length
18 inches (45.0 cm) 18 inches (45.0 cm)
?Use a PF52 oil filter if your vehicle has four-wheel drive.
R
PF1218T
A 130OC
CV796C
4 1-932
GF626
22 154886
Trico
18 inches (45.0 cm)
J
PF1218
A
1300C
cv774c
41 -932
GF626
22 154886
Trico
18 inches (45.0 cm)
6-75
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Short TripKity Maintenance Schedule -- Gasoline Engines
The services shown in this schedule up to 100,000 miles
(1 66 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals.
Footnotes
T 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, transmission shift linkage, transfer
case shift linkage, parking brake cable guides, rear
driveline center splines, front axle propshaft splines
and brake pedal springs. Ball joints and kingpin
bushings should not be lubricated unless their
temperature is 10°F
(- 12°C) or higher, or they
could be damaged.
:f: :1:
0
0
0
e
Drive axle service:
Locking Differential
-- Drain fluid and refill at first
engine
oil change. At subsequent oil changes, check
fluid level and add fluid as needed. If driving in
dusty areas or towing a trailer, drain fluid and refill
every 15,000 miles
(25 000 km).
Standard Differential -- Check fluid level and add
fluid
as needed at every oil change. If driving in
dusty areas or towing a trailer, drain fluid and refill
every
I5,OOO miles (25 000 km).
More frequent lubrication may be required for
heavy-duty or off-road
use.
3500 HD Models with applications requiring extreme
overload/trailer towing conditions and high-speed
(above
45 mph or 70 kmh) conditions for extended
periods
of time must have the drive axle fluid changed
evey
30,000 miles (50 000 km). See “Recommended
Fluids and Lubricants’’
in this section.
7-6
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Long Tripmighway Maintenance Schedule -- Gasoline Engines I
The services shown in this schedule up to 100,000 miles
(1 66 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals.
Footnotes
j- 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, transmission shift linkage, transfer
case shift linkage, parking brake cable guides, rear
driveline center splines, front axle propshaft splines
and brake pedal springs. Ball joints and kingpin
bushings should not be lubricated unless their
temperature is
10°F (- 12°C) or higher, or they
could be damaged.
‘k‘k Drive axle service:
a
e
e
a
Locking Differential -- Drain fluid and refill at first
engine
oil change. At subsequent oil changes, check
fluid level and add fluid as needed.
If driving in
dusty areas or towing a trailer, drain fluid and refill
every 15,000 miles
(25 000.km).
Standard Differential
-- Check fluid level and add
fluid
as needed at every engine oil change. If driving
in dusty areas or towing a trailer, drain fluid and
refill every
15,000 miles (25 000 km).
More frequent lubrication may be required for
heavy-duty or off-road use.
3500 HD Models with applications requiring extreme
overloadtrailer towing conditions and high-speed
(above
45 mph or 70 kmh) conditions for extended
periods
of time must have the drive axle fluid changed
every
30,000 miles (50 000 km). See ”Recommended
Fluids and Lubricants”
in this section.
I
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The Roadside Assistance services listed are available
to retail and retail lease customers operating
1996 GMC light duty trucks for a period of
3 years/36,000 miles (60 000 km). All services must
be pre-arranged by GMC Truck Roadside Assistance.
Over-the-phone assistance, such
as providing the name
of the closest dealer or minor technical advice, etc., is
available
to all owner/operators of GMC trucks,
regardless
of vehicle or mileage.
Just dial GMC Truck Roadside Assistance at
1 -800-GMC-TRUCK ( 1-800-462-8782, Roadside
Assistance prompt)
to reach a qualified representative
who can assist you. Your
Roadside Assistance representative
will ask for the
following information when your call
is received:
0 Vehicle Identification Number (VIN)
Name and home address
Telephone number and location from which you
Location, license plate number and color of your
are calling
GMC truck
0 Mileage of vehicle and description of problem
Roadside Assistance
is available 24 hours a day, 7 days
a week, 365 days a year, including weekends and
holidays. Should
you have any questions about roadside
assistance, call the GMC Truck Roadside Assistance
Center or contact your dealer.
Roadside Assistance is not part of or included in the
coverage provicled
by the New Vehicle Limited Wcm-mty.
GMC Truck reserves the right to make my changes or
discontinue the Roadside Assistunce program ut
any
time without notification.
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Canadian Roadside Assistance
Vehicles purchased in Canada have an extensive
Roadside Assistance program accessible from anywhere
in Canada or the United States. Please refer to the
separate brochure provided by
the dealer or call
1-800-268-6800 for emergency services.
Courtesy Transportation
GMC Truck Commitment Plus offers courtesy
transportation for customers when obtaining
warranty service.
This program is offered in conjunction with the
3 year/36,000 mile (60 000 km) Bumper to Bumper
New Vehicle Limited Warranty.
Courtesy transportation includes:
One way shuttle ride from the dealership (up to
10 miles (16 km)) for same-day warranty repairs.
A loaner vehicle will be made available for overnight
warranty repairs up to a five day maximum, or up to a
$30 allowance for a rental vehicle, cab, bus or other
transportation in lieu
of a loaner. (Bringing. vehicles in
late in
the day, for service on the next day, dues not
constitute overnight repairs.)
Gas allowance of up to $10 a day for rides provided
by another person (i.e., friend, neighbor, etc.) in
lieu
of rental for overnight warranty repair up to
five day maximum.
All Courtesy Transportation arrangements will be
administered by your GMC Truck dealership service
management. All requests should reflect actual costs
up to and not to exceed the maximum allowable
dollar limits.
Some state insurance regulations make it impractical to
rent vehicles to people under 21 years
of age. If you are
under 2 1 and have difficulty renting a vehicle, GMC
Truck
will reimburse up to $30/day for documented
transportation you receive.
The Commitment Plus Courtesy Transportation Program
is not part of the Bumper to Bumper Limited Warranty.
GMC Truck reserves the right to make any changes or
discontinue
the Courtesy Transportation Program at any
time without notification.
For additional program details contact your GMC
Truck dealer.
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Tape Player Care ............................... 3-24
Temperature Control. Climate Control System
..... 3- I. 3-3
Theft
.......................................... 2-7
Theft-Deterrent Feature
.......................... 3-2 1
Thermostat .................................... 6-30
Third Door ..................................... 2-3
Tilt Steering Wheel
............................. 2-33
Time. Setting the
................................ 3-7
Tirechains
.................................... 6-57
Tire Loading
................................... 4-42
Tires
......................................... 6-48
Alignment and Balance
........................ 6-55
Buying New ................................. 6-53
Chains
..................................... 6-57
Changing
a Flat .............................. 5-2 1
Cleaning .................................... 6-64
Inflation
.................................... 6-49
Inflation Check
............................... 7-42
Inspection and Rotation
........................ 6-50
Loading .................................... 4-42
Pressure
.................................... 6-49
Temperature
................................. 6-55
Traction .................................... 6-54
Treadwear ................................... 6-54
Uniform Quality Grading
....................... 6-54
Wear Indicators
.............................. 6-52
Wheel Replacement
........................... 6-55
When It’s Time for New
....................... 6-52
TopStrap
..................................... 1-39
TorqueLock
................................... 2-28
THEFTLOCK
TM ................................ 3-2 1
Torque. Wheel Nut ......................... 5.28. 6.75
Towing
a Trailer ................................ 4-46
Trailer
Towing
Your Vehicle
............................. 5-7
Brakes
..................................... 4-55
Driving on Grades
............................ 4-57
Drivingwith
................................. 4-55
Hitches ..................................... 4-54
Maintenance When Towing
..................... 4-59
Parking on
Hills .............................. 4-58
Safety Chains
................................ 4-55
Tongueweight ............................... 4-53
Total Weight on Tires
.......................... 4-54
Towing
..................................... 4-46
TurnSlgnals ................................. 4-57
Weight
..................................... 4-48
Wiring Harness
............................... 4-59
Transfer Case, Electronic ......................... 2-23
Transfer Case Lubricant
.......................... 6-25
Transfer Case, Manual
........................... 2-21
Transmission Fluid
Automatic
................................... 6-19
Manual
..................................... 6-22
Transmitters. Keyless Entry
........................ 2-5
Transportation, Courtesy
.......................... 8-6
Trip Odometer
................................. 2-57
TTYUsers
..................................... 8-3
Turn Signal
and Lane Change Signals ............... 2-34
Turn Signal/Multifunction Lever
................... 2-33
Turn Signals When Towing
a Trailer ................ 4-57
9-10
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