Dodge Tires Service Manual
DR TIRES/WHEELS 22 - 1
TIRES/WHEELS
TABLE OF CONTENTS
page page
TIRES/WHEELS
DIAGNOSIS AND TESTING - TIRE AND
WHEEL RUNOUT ......................1
STANDARD PROCEDURE
STANDARD PROCEDURE - TIRE ROTATION . 2
STANDARD PROCEDURE - MATCH
MOUNTING ...........................3
STANDARD PROCEDURE - TIRE AND
WHEEL BALANCE ......................4
TIRES
DESCRIPTION
DESCRIPTION - SPARE TIRE /
TEMPORARY .........................5
DESCRIPTION - TIRES ..................5
DESCRIPTION - RADIAL – PLY TIRES ......6
DESCRIPTION - TIRE PRESSURE FOR
HIGH SPEEDS.........................6
DESCRIPTION - REPLACEMENT TIRES .....6
DESCRIPTION - TIRE INFLATION
PRESSURES ..........................6
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - PRESSURE
GAUGES .............................7
DIAGNOSIS AND TESTING - TIRE NOISE
OR VIBRATION ........................7
DIAGNOSIS AND TESTING - TREAD WEAR
INDICATORS ..........................7
DIAGNOSIS AND TESTING - TIRE WEAR
PATTERNS ...........................8
DIAGNOSIS AND TESTING - TIRE/VEHICLE
LEAD................................8
STANDARD PROCEDURE - REPAIRING
LEAKS ..............................10
SPECIFICATIONS
TIRE REVOLUTIONS PER MILE ..........10
WHEELS
DESCRIPTION .........................11
OPERATION ...........................11
DIAGNOSIS AND TESTING
WHEEL INSPECTION ..................11
STANDARD PROCEDURE
STANDARD PROCEDURE - WHEEL
REPLACEMENT.......................12
STANDARD PROCEDURE - DUAL REAR
WHEEL INSTALLATION .................12
SPECIFICATIONS
TORQUE CHART ......................13
STUDS
REMOVAL .............................14
INSTALLATION .........................14
WHEEL COVER
REMOVAL .............................14
INSTALLATION
INSTALLATION - REAR .................14
INSTALLATION - FRONT ................15
SPARE TIRE
DESCRIPTION
DESCRIPTION - SPARE / TEMPORARY
TIRE ...............................15
DESCRIPTION - FULL SIZE, SPARE WHEEL
WITH MATCHING TIRE .................15
TIRES/WHEELS
DIAGNOSIS AND TESTING - TIRE AND WHEEL
RUNOUT
Radial runout is the difference between the high
and low points on the tire or wheel (Fig. 1).
Lateral runout is the wobble of the tire or wheel.
Radial runout of more than 1.5 mm (.060 inch)
measured at the center line of the tread may cause
the vehicle to shake.
Lateral runout of more than 2.0 mm (.080 inch)
measured near the shoulder of the tire may cause the
vehicle to shake.
Sometimes radial runout can be reduced. Relocate
the wheel and tire assembly on the mounting studs
(See Method 1). If this does not reduce runout to an
acceptable level, the tire can be rotated on the wheel.
(See Method 2).
METHOD 1 (RELOCATE WHEEL ON HUB)
(1) Drive vehicle a short distance to eliminate tire
flat spotting from a parked position.
(2) Check wheel bearings and adjust if adjustable
or replace if necessary.
(3) Check the wheel mounting surface.
(4) Relocate wheel on the mounting, two studs
over from the original position.
(5) Tighten wheel nuts until all are properly
torqued, to eliminate brake distortion.
(6) Check radial runout. If still excessive, mark
tire sidewall, wheel, and stud at point of maximum
runout and proceed to Method 2.
22 - 2 TIRES/WHEELS DR
TIRES/WHEELS (Continued)
Fig. 1 Checking Tire/Wheel/Hub Runout
1 - RADIAL RUNOUT
2 - LATERAL RUNOUT
METHOD 2 (RELOCATE TIRE ON WHEEL)
NOTE: Rotating the tire on wheel is particularly
effective when there is runout in both tire and
wheel.
(1) Remove tire from wheel and mount wheel on
service dynamic balance machine.
(2) Check wheel radial runout (Fig. 2) and lateral
runout (Fig. 3).
• STEEL WHEELS: Radial runout 0.031 in., Lat-
eral runout 0.031 in. (maximum)
• ALUMINUM WHEELS: Radial runout 0.020 in.,
Lateral runout 0.025 in. (maximum)
(3) If point of greatest wheel lateral runout is near
original chalk mark, remount tire 180 degrees.
Recheck runout, Refer to match mounting procedure.
STANDARD PROCEDURE
Fig. 2 Radial Runout
1 - MOUNTING CONE
2 - SPINDLE SHAFT
3 - WING NUT
4 - PLASTIC CUP
5 - DIAL INDICATOR
6 - WHEEL
7 - DIAL INDICATOR
STANDARD PROCEDURE - TIRE ROTATION
Tires on the front and rear axles operate at different loads and perform different steering, driving, and
braking functions. For these reasons, the tires wear
at unequal rates. They may also develop irregular
wear patterns. These effects can be reduced by rotating the tires according to the maintenance schedule
in the Owners Manual. This will improve tread life,
traction and maintain a smooth quiet ride.
The recommended method of tire rotation is (Fig.
4) & (Fig. 5). Other methods can be used, but may
not provide the same tire longevity benefits.
CAUTION: 3500 Dual rear tires have a new tire rotation pattern. This is to accommodate the asymmet-
Fig. 3 Lateral Runout
1 - MOUNTING CONE
2 - SPINDLE SHAFT
3 - WING NUT
4 - PLASTIC CUP
5 - DIAL INDICATOR
6 - WHEEL
7 - DIAL INDICATOR
rical design of the ON/OFF road tires and the use of
the outlined white letter (OWL) tires. When replacing a flat, the spare tire may have to be remounted
on the rim or installed at a different location to
maintain the correct placement of the asymmetrical
design or the (OWL).
DR TIRES/WHEELS 22 - 3
TIRES/WHEELS (Continued)
Fig. 4 TIRE ROTATION PATTERN - SINGLE REAR
WHEEL (SRW)
Fig. 6 First Measurement On Tire
1 - REFERENCE MARK
2 - 1ST MEASUREMENT
HIGH SPOT MARK TIRE AND RIM
3 - WHEEL
4 - VALVE STEM
Fig. 5 TIRE ROTATION PATTERN - DUAL REAR
WHEELS (DRW)
STANDARD PROCEDURE - MATCH MOUNTING
Wheels and tires are match mounted at the factory.
This means that the high spot of the tire is matched
to the low spot on the wheel rim. Each are marked
with a bright colored temporary label on the outboard surface for alignment. The wheel is also
marked permanently on the inside of the rim in the
tire well. This permanent mark may be a paint dot
or line, a permanent label or a stamped impression
such as an X. An optional location mark is a small
spherical indentation on the vertical face of the outboard flange on some non styled base steel wheels.
The tire must be removed to locate the permanent
mark on the inside of the wheel.
Before dismounting a tire from its wheel, a reference mark should be placed on the tire at the valve
stem location. This reference will ensure that it is
remounted in the original position on the wheel.
(1) Remove the tire and wheel assembly from the
vehicle and mount on a service dynamic balance
machine.
(2) Measure the total runout on the center of the
tire tread rib with a dial indicator. Record the indicator reading. Mark the tire to indicate the high spot.
Place a mark on the tire at the valve stem location
(Fig. 6).
(3) Break down the tire and remount it 180
degrees on the rim (Fig. 7).
Fig. 7 Remount Tire 180 Degrees
1 - VALVE STEM
2 - REFERENCE MARK
(4) Measure the total indicator runout again. Mark
the tire to indicate the high spot.
(5) If runout is still excessive, the following proce-
dures must be done.
22 - 4 TIRES/WHEELS DR
TIRES/WHEELS (Continued)
This procedure will normally reduce the runout to an
acceptable amount, if not replace the rim.
STANDARD PROCEDURE - TIRE AND WHEEL
BALANCE
It is recommended that a two plane service
dynamic balancer be used when a tire and wheel
assembly require balancing. Refer to balancer operation instructions for proper cone mounting procedures. Typically use front cone mounting method for
steel wheels. For aluminum wheel use back cone
mounting method without cone spring.
NOTE: Static should be used only when a two plane
balancer is not available.
NOTE: Cast aluminum and forged aluminum wheels
require coated balance weights and special align-
Fig. 8 Remount Tire 90 Degrees In Direction of
Arrow
1 - 2ND HIGH SPOT ON TIRE
2 - 1ST HIGH SPOT ON TIRE
• If the high spot is within 101.6 mm (4.0 in.) of
the first spot and is still excessive, replace the tire.
• If the high spot is within 101.6 mm (4.0 in.) of
the first spot on the wheel, the wheel may be out of
specifications. Refer to Wheel and Tire Runout.
•
If the high spot is NOT within 101.6 mm (4.0 in.)
of either high spot, draw an arrow on the tread from
second high spot to first. Break down the tire and
remount it 90 degrees on rim in that direction (Fig. 8).
ment equipment.
Wheel balancing can be accomplished with either
on or off vehicle equipment. When using on-vehicle
balancing equipment, remove the opposite wheel/tire.
Off-vehicle balancing is recommended.
For static balancing, find the location of the heavy
spot causing the imbalance. Counter balance wheel
directly opposite the heavy spot. Determine weight
required to counter balance the area of imbalance.
Place half of this weight on the inner rim flange and
the other half on the outer rim flange (Fig. 9).
1 - HEAVY SPOT
2 - CENTER LINE OF SPINDLE
3 - ADD BALANCE WEIGHTS HERE
Fig. 9 Static Unbalance & Balance
4 - CORRECTIVE WEIGHT LOCATION
5 - TIRE OR WHEEL TRAMP, OR WHEEL HOP
DR TIRES/WHEELS 22 - 5
TIRES/WHEELS (Continued)
Fig. 10 Dynamic Unbalance & Balance
1 - CENTER LINE OF SPINDLE
2 - ADD BALANCE WEIGHTS HERE
3 - CORRECTIVE WEIGHT LOCATION
4 - HEAVY SPOT WHEEL SHIMMY AND VIBRATION
For dynamic balancing, the balancing equipment is
designed to locate the amount of weight to be applied
to both the inner and outer rim flange (Fig. 10).
TIRES
DESCRIPTION
DESCRIPTION - SPARE TIRE / TEMPORARY
The temporary spare tire is designed for emergency use only. The original tire should be repaired
or replaced at the first opportunity, then reinstalled.
Do not exceed speeds of 50 M.P.H. when using the
temporary spare tire. Refer to Owner’s Manual for
complete details.
DESCRIPTION - TIRES
Tires are designed and engineered for each specific
vehicle. They provide the best overall performance
for normal operation. The ride and handling characteristics match the vehicle’s requirements. With
proper care they will give excellent reliability, traction, skid resistance, and tread life.
Driving habits have more effect on tire life than
any other factor. Careful drivers will obtain in most
cases, much greater mileage than severe use or careless drivers. A few of the driving habits which will
shorten the life of any tire are:
• Rapid acceleration
• Severe brake applications
• High speed driving
• Excessive speeds on turns
• Striking curbs and other obstacles
Radial-ply tires are more prone to irregular tread
wear. It is important to follow the tire rotation interval shown in the section on Tire Rotation, (Refer to
22 - TIRES/WHEELS - STANDARD PROCEDURE).
This will help to achieve a greater tread life.
TIRE IDENTIFICATION
Tire type, size, aspect ratio and speed rating are
encoded in the letters and numbers imprinted on the
side wall of the tire. Refer to the chart to decipher
the tire identification code (Fig. 11).
Performance tires have a speed rating letter after
the aspect ratio number. The speed rating is not
always printed on the tire sidewall. These ratings
are:
• Q up to 100 mph
• R up to 106 mph
• S up to 112 mph
• T up to 118 mph
• U up to 124 mph
• H up to 130 mph
• V up to 149 mph
• Z more than 149 mph (consult the tire manu-
facturer for the specific speed rating)
An All Season type tire will have either M+S,M
&SorM–S(indicating mud and snow traction)
imprinted on the side wall.
Loading...