Downloaded from www.Manualslib.com manuals search engine Front Position Rear Position
4. With UP on the ratchet facing you, raise the vehicle
by rotating the ratchet and wheel wrench clockwise.
Raise the vehicle far enough
off the ground so there
is enough room for the spare tire to fit.
5. Remove all the wheel
nuts and take off the
flat tire.
5-30
6. Remove any rust or dirt
from the wheel bolts,
mounting surfaces
and
spare wheel.
Downloaded from www.Manualslib.com manuals search engine Temperature -- A, B, C
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of
heat and its ability to dissipate heat when tested under
controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the
material
of the tire to degenerate and reduce tire life, and
excessive temperature can lead
to sudden tire failure.
The grade
C corresponds to a level of performance
which all passenger car tires must meet under the
Federal Motor Vehicle Safety Standard
No. 109. Grades
B and A represent higher levels of performance on the
laboratory test wheel than the minimum required by law.
Warning: The temperature grade for this tire
is
established for a tire that is properly inflated and not
overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory to give you the longest tire life
and best overall performance. Scheduled wheel alignment and
wheel balancing are not
needed. However,
if you notice unusual tire wear or
your vehicle pulling one way or the other,
the alignment
may need to
be reset. If you notice your vehicle
vibrating when driving on a smooth road, your wheels
may need to be rebalanced.
Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted
or corroded. If wheel nuts keep coming loose, the wheel,
wheel bolts and wheel
nuts should be replaced. If the
wheel leaks air, replace it (except some aluminum
wheels, which can sometimes be repaired). See your
GM dealer if any of these conditions exist.
Your dealer will know the kind of wheel you need.
Each new wheel should have the same load-carrying
capacity, diameter, width, offset and be mounted the
same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new
GM original
equipment parts. This way, you will be sure to have the
right wheel, wheel bolts and wheel nuts for your vehicle.
6-50
Downloaded from www.Manualslib.com manuals search engine I A CAUTION:
Using the wrong replacement wheels, wheel bolts
or wheel nuts on your vehicle can be dangerous.
It could affect the braking and handling of your
vehicle, make your tires lose air and make you
lose control. You could have a collision in which
you or others could be injured. Always use the
correct wheel, wheel bolts and wheel nuts
for replacement.
-
I NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper
height, vehicle ground clearance and tire or tire
chain clearance to the body and chassis.
See “Changing a Flat
Tire” in the Index for
more information. Used
Replacement Wheels
I
Putting a used wheel on your vehicle is
dangerous. You can’t know how
it’s been used or
how far it’s been driven. It could fail suddenly
and cause an accident. If you have to replace
a
wheel, use a new GM original equipment wheel.
Tire Chains
NOTICE:
If your vehicle has P265/75R16 size tires, don’t
use tire chains. They can damage your vehicle
because there’s not enough clearance.
NOTICE: (Continued)
6-51
Downloaded from www.Manualslib.com manuals search engine Capacities and Specifications
Please refer to “Recommended Fluids and Lubricants”
in the Index for more information.
Type
RPO Code
VIN Code
Fuel System
Engine Identification -- Gasoline Engines
Engine “VORTEC” “VORTEC”
5700 7400
V8 V8
L3 1 L29
R J
SFI* SFI*
*Sequential Fuel Injection
Wheels and Tires
MODEL DESCRIPTION
C 1500 5 bolts ( 14 mm)
K 1500, 6 bolts (14 mm)
C-IS
2500
TORQUE
(190 Nam)
(190 N-m) 140 lb-ft
140 lb-ft
C-K 2500 8 bolts ( 14 mm) 140 lb-ft
(190 N-m)
Tire Pressure See the Certificationmire label on
the rear edge of the driver’s door
or the incomplete vehicle document in the cab.
6-69
