TIRES/WHEELS
TABLE OF CONTENTS
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TIRES/WHEELSDIAGNOSIS AND TESTING - TIRE AND
WHEEL RUNOUT . . . . . . . . . . . . . . . . . . . . . . 1STANDARD PROCEDURE
STANDARD PROCEDURE - ROTATION . . . . . . 2STANDARD PROCEDURE - MATCH
MOUNTING . . . . . . . . . . . . . . . . . . . . . . . . . . . 3STANDARD PROCEDURE - TIRE AND
WHEEL BALANCE . . . . . . . . . . . . . . . . . . . . . . 4TIRES
DESCRIPTIONDESCRIPTION - TIRES . . . . . . . . . . . . . . . . . . 5DESCRIPTION - RADIAL-PLY TIRES . . . . . . . . 6DESCRIPTION - TIRE INFLATION
PRESSURES . . . . . . . . . . . . . . . . . . . . . . . . . . 6DESCRIPTION - TIRE PRESSURE FOR
HIGH SPEED . . . . . . . . . . . . . . . . . . . . . . . . . . 7DESCRIPTION - REPLACEMENT TIRES . . . . . 7
DIAGNOSIS AND TESTINGDIAGNOSIS AND TESTING - PRESSURE
GAUGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7DIAGNOSIS AND TESTING - TREAD WEAR
INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . . . 7DIAGNOSIS AND TESTING - TIRE WEAR
PATTERNS . . . . . . . . . . . . . . . . . . . . . . . . . . . 8DIAGNOSIS AND TESTING - TIRE NOISE
OR VIBRATION . . . . . . . . . . . . . . . . . . . . . . . . 8
DIAGNOSIS AND TESTING - TIRE/VEHICLELEAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
STANDARD PROCEDURE - REPAIRINGLEAKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CLEANING - TIRES . . . . . . . . . . . . . . . . . . . . . 10SPECIFICATIONS
TIRE SIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . 10SPARE TIRE
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 10SPARE TIRE CARRIER
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 11
WHEELSDESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 11DIAGNOSIS AND TESTING - WHEEL
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . 11STANDARD PROCEDURE
STANDARD PROCEDURE - WHEELINSTALLATION . . . . . . . . . . . . . . . . . . . . . . . 12
STANDARD PROCEDURE - WHEELREPLACEMENT. . . . . . . . . . . . . . . . . . . . . . . 12
SPECIFICATIONSTORQUE CHART . . . . . . . . . . . . . . . . . . . . . . 13
STUDSREMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 13
TIRES/WHEELS
DIAGNOSIS AND TESTING - TIRE AND WHEELRUNOUT
Radial runout is the difference between the highand 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 causethe vehicle to shake.
Lateral runout of more than 2.0 mm (.080 inch)measured near the shoulder of the tire may cause thevehicle to shake.
Sometimes radial runout can be reduced. Relocatethe wheel and tire assembly on the mounting studs(See Method 1). If this does not reduce runout to anacceptable level, the tire can be rotated on the wheel.(See Method 2).
Fig. 1 Checking Tire/Wheel/Hub Runout1 - RADIAL RUNOUT2 - LATERAL RUNOUT
TJ TIRES/WHEELS 22 - 1
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 maximumrunout and proceed to Method 2.
METHOD 2 (RELOCATE TIRE ON WHEEL)
NOTE: Rotating the tire on wheel is particularlyeffective when there is runout in both tire andwheel.
(1) Remove tire from wheel and mount wheel onservice dynamic balance machine.
(2) Check wheel radial runout (Fig. 2) and lateralrunout (Fig. 3).
• STEEL WHEELS: Radial runout 0.040 in., Lat-eral runout 0.045 in. (average-maximum)
• ALUMINUM WHEELS: Radial runout 0.030 in.,Lateral runout 0.035 in. (average-maximum)
(3) If point of greatest wheel lateral runout is nearoriginal chalk mark, remount tire 180 degrees.Recheck runout or match mount, (Refer to 22 -TIRES/WHEELS - STANDARD PROCEDURE).
STANDARD PROCEDURE
STANDARD PROCEDURE - ROTATIONTires on the front and rear operate at different
loads and perform different steering, driving, andbraking functions. For these reasons they wear atunequal rates and tend to develop irregular wearpatterns. These effects can be reduced by rotatingthe tires at regular intervals. The benefits of tirerotation are:
• Increase tread life• Maintain traction levels• A smooth, quiet rideThe suggested method of tire rotation is (Fig. 4).
Other rotation methods can be used, but they willnot provide all the tire longevity benefits.
Fig. 2 RADIAL RUNOUT1 - DIAL INDICATORS2 - MOUNTING CONE3 - SPINDLE SHAFT4 - WING NUT5 - PLASTIC CUP6 - WHEEL
Fig. 3 LATERAL RUNOUT1 - DIAL INDICATORS2 - MOUNTING CONE3 - SPINDLE SHAFT4 - WING NUT5 - PLASTIC CUP6 - WHEEL
Fig. 4 Tire Rotation Pattern
22 - 2 TIRES/WHEELS TJ
TIRES/WHEELS (Continued)
STANDARD PROCEDURE - MATCH MOUNTINGTires and wheels are currently match mounted at
the factory. Match mounting is a technique used toreduce runout in the wheel/tire assembly. This meansthat the high spot of the tire is aligned with the lowspot on the wheel rim. The high spot on the tire ismarked with a paint mark or a bright colored adhe-sive label on the outboard sidewall. The low spot onthe rim is identified with a label on the outside of therim and a dot on the inside of the rim. If the outsidelabel has been removed the tire will have to beremoved to locate the dot on the inside of the rim.
Before dismounting a tire from its wheel, a refer-ence mark should be placed on the tire at the valvestem location. This reference will ensure that it isremounted in the original position on the wheel.
(1) Use a dial indicator to locate the high spot ofthe tire on the center tread rib (Fig. 5). Record theindicator reading and mark the high spot on the tire.Place a mark on the tire at the valve stem location(Fig. 6).
(2) Break down the tire and remount it 180degrees on the rim (Fig. 7).
(3) Measure the total runout again and mark thetire to indicate the high spot.
(4) If runout is still excessive use the followingprocedures.
(a) If the high spot is within 101.6 mm (4.0 in.)of the first spot and is still excessive, replace thetire.
(b) If the high spot is within 101.6 mm (4.0 in.)of the first spot on the wheel, the wheel may be outof specifications. (Refer to 22 - TIRES/WHEELS -DIAGNOSIS AND TESTING).
(c) If the high spot is NOT within 101.6 mm (4.0in.) of either high spot, draw an arrow on the treadfrom second high spot to first. Break down the tireand remount it 90 degrees on rim in that direction(Fig. 8). This procedure will normally reduce therunout to an acceptable amount.
Fig. 5 Dial Indicator
Fig. 6 First Measurement On Tire1 - REFERENCE MARK2 - 1ST MEASUREMENT HIGH SPOT MARK TIRE AND RIM3 - WHEEL4 - VALVE STEM
Fig. 7 Remount Tire 180 Degrees1 - VALVE STEM2 - REFERENCE MARK
TJ TIRES/WHEELS 22 - 3
TIRES/WHEELS (Continued)
STANDARD PROCEDURE - TIRE AND WHEELBALANCE
It is recommended that a two plane servicedynamic balancer be used when a tire and wheelassembly require balancing. Refer to balancer opera-
tion instructions for proper cone mounting proce-dures. Typically use front cone mounting method forsteel wheels. For aluminum wheel use back conemounting method without cone spring.
NOTE: Static should be used only when a two planebalancer is not available.
NOTE: Cast aluminum and forged aluminum wheelsrequire coated balance weights and special align-ment equipment.
Wheel balancing can be accomplished with eitheron or off vehicle equipment. When using on-vehiclebalancing equipment, remove the opposite wheel/tire.Off-vehicle balancing is recommended.
For static balancing, find location of heavy spotcausing the imbalance. Counter balance wheeldirectly opposite the heavy spot. Determine weightrequired to counter balance the area of imbalance.Place half of this weight on the inner rim flange andthe other half on the outer rim flange (Fig. 9).
For dynamic balancing, the balancing equipment isdesigned to locate the amount of weight to be appliedto both the inner and outer rim flange (Fig. 10).
Fig. 9 Static Unbalance & Balance1 - HEAVY SPOT2 - CENTER LINE OF SPINDLE3 - ADD BALANCE WEIGHTS HERE
4 - CORRECTIVE WEIGHT LOCATION5 - TIRE OR WHEEL TRAMP, OR WHEEL HOP
Fig. 8 Remount Tire 90 Degrees In Direction ofArrow
1 - 2ND HIGH SPOT ON TIRE2 - 1ST HIGH SPOT ON TIRE
22 - 4 TIRES/WHEELS TJ
TIRES/WHEELS (Continued)
TIRES
DESCRIPTION
DESCRIPTION - TIRESTires are designed and engineered for each specific
vehicle. They provide the best overall performancefor normal operation. The ride and handling charac-teristics match the vehicle’s requirements. Withproper care they will give excellent reliability, trac-tion, skid resistance, and tread life.
Driving habits have more effect on tire life thanany other factor. Careful drivers will obtain in mostcases, much greater mileage than severe use or care-less drivers. A few of the driving habits which willshorten the life of any tire are:
• Rapid acceleration• Severe brake applications• High speed driving• Excessive speeds on turns• Striking curbs and other obstaclesRadial-ply tires are more prone to irregular tread
wear. It is important to follow the tire rotation inter-val (Refer to 22 - TIRES/WHEELS - STANDARDPROCEDURE). This will help to achieve a greatertread life.
TIRE IDENTIFICATIONTire type, size, aspect ratio and speed rating are
encoded in the letters and numbers imprinted on theside wall of the tire. Refer to the chart to decipherthe tire identification code (Fig. 11).
Performance tires have a speed rating letter afterthe aspect ratio number.
LETTER SPEED RATING
P 150 km/h (93 mph)
S 180 km/h (112 mph)
T 190 km/h (118 mph)
U 200 km/h (124 mph)
H 210 km/h (130 mph)
V 240 km/h (149 mph)
W 270 km/h (168 mph)
Y 300 km/h (186 mph)
The speed rating is not always printed on the tiresidewall.
Fig. 10 Dynamic Unbalance & Balance1 - CENTER LINE OF SPINDLE2 - ADD BALANCE WEIGHTS HERE
3 - CORRECTIVE WEIGHT LOCATION4 - HEAVY SPOT WHEEL SHIMMY AND VIBRATION
TJ TIRES/WHEELS 22 - 5
TIRES/WHEELS (Continued)
TIRE CHAINSTire snow chains may be used on certain models.
Refer to the Owner’s Manual for more information.
DESCRIPTION - RADIAL-PLY TIRESRadial-ply tires improve handling, tread life and
ride quality, and decrease rolling resistance.Radial-ply tires must always be used in sets of
four. Under no circumstances should they be used onthe front only. They may be mixed with temporaryspare tires when necessary. A maximum speed of 50MPH is recommended while a temporary spare is inuse.
Radial-ply tires have the same load-carrying capac-ity as other types of tires of the same size. They alsouse the same recommended inflation pressures.
The use of oversized tires, either in the front orrear of the vehicle, can cause vehicle drive train fail-ure. This could also cause inaccurate wheel speedsignals when the vehicle is equipped with Anti-LockBrakes.
The use of tires from different manufactures on thesame vehicle is NOT recommended. The proper tirepressure should be maintained on all four tires.
DESCRIPTION - TIRE INFLATION PRESSURESUnder inflation will cause rapid shoulder wear, tire
flexing, and possible tire failure (Fig. 12).
Over inflation will cause rapid center wear andloss of the tire’s ability to cushion shocks (Fig. 13).
Improper inflation can cause:• Uneven wear patterns• Reduced tread life• Reduced fuel economy• Unsatisfactory ride• Vehicle driftFor proper tire pressure specification refer to the
Tire Inflation Pressure Chart provided with the vehi-cles Owners Manual. A Certification Label on thedrivers side door pillar provides the minimum tireand rim size for the vehicle. The label also list thecold inflation pressure for these tires at full loadoperation
Fig. 11 Tire Identification
Fig. 12 Under Inflation Wear1 - THIN TIRE THREAD AREAS
Fig. 13 Over Inflation Wear1 - THIN TIRE THREAD AREA
22 - 6 TIRES/WHEELS TJ
TIRES (Continued)
Tire pressures have been chosen to provide safeoperation, vehicle stability, and a smooth ride. Tirepressure should be checked cold once a month. Tirepressure decreases as the ambient temperaturedrops. Check tire pressure frequently when ambienttemperature varies widely.
Tire inflation pressures are cold inflation pressure.The vehicle must sit for at least 3 hours to obtain thecorrect cold inflation pressure reading. Or be drivenless than one mile after sitting for 3 hours. Tireinflation pressures may increase from 2 to 6 poundsper square inch (psi) during operation. Do not reducethis normal pressure build-up.
WARNING: OVER OR UNDER INFLATED TIRES CANAFFECT VEHICLE HANDLING AND TREAD WEAR.THIS MAY CAUSE THE TIRE TO FAIL SUDDENLY,RESULTING IN LOSS OF VEHICLE CONTROL.
DESCRIPTION - TIRE PRESSURE FOR HIGHSPEED
Where speed limits allow the vehicle to be drivenat high speeds, correct tire inflation pressure is veryimportant. For speeds up to and including 120 km/h(75 mph), tires must be inflated to the pressuresshown on the tire placard. For continuous speeds inexcess of 120 km/h (75 mph), tires must be inflatedto the maximum pressure specified on the tire side-wall.
Vehicles loaded to the maximum capacity shouldnot be driven at continuous speeds above 75 mph(120 km/h).
For emergency vehicles that are driven at speedsover 90 mph (144 km/h), special high speed tiresmust be used. Consult tire manufacturer for correctinflation pressure recommendations.
DESCRIPTION - REPLACEMENT TIRESThe original equipment tires provide a proper bal-
ance of many characteristics such as:• Ride• Noise• Handling• Durability• Tread life• Traction• Rolling resistance• Speed capabilityIt is recommended that tires equivalent to the orig-
inal equipment tires be used when replacement isneeded.
Failure to use equivalent replacement tires mayadversely affect the safety and handling of the vehi-cle.
The use of oversize tires may cause interferencewith vehicle components. Under extremes of suspen-sion and steering travel, interference with vehiclecomponents may cause tire damage.
WARNING: FAILURE TO EQUIP THE VEHICLE WITHTIRES HAVING ADEQUATE SPEED CAPABILITYCAN RESULT IN SUDDEN TIRE FAILURE.
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - PRESSUREGAUGES
A quality air pressure gauge is recommended tocheck tire pressure. After checking the air pressure,replace valve cap finger tight.
DIAGNOSIS AND TESTING - TREAD WEARINDICATORS
Tread wear indicators are molded into the bottomof the tread grooves. When tread depth is 1.6 mm(1/16 in.), the tread wear indicators will appear as a13 mm (1/2 in.) band (Fig. 14).
Tire replacement is necessary when indicatorsappear in two or more grooves or if localized baldingoccurs.
Fig. 14 Tread Wear Indicators1 - TREAD ACCEPTABLE2 - TREAD UNACCEPTABLE3 - WEAR INDICATOR
TJ TIRES/WHEELS 22 - 7
TIRES (Continued)
DIAGNOSIS AND TESTING - TIRE WEARPATTERNS
Under inflation will cause wear on the shoulders oftire. Over inflation will cause wear at the center oftire.
Excessive camber causes the tire to run at anangle to the road. One side of tread is then wornmore than the other (Fig. 15).
Excessive toe-in or toe-out causes wear on thetread edges and a feathered effect across the tread(Fig. 15).
DIAGNOSIS AND TESTING - TIRE NOISE ORVIBRATION
Radial-ply tires are sensitive to force impulsescaused by improper mounting, vibration, wheeldefects, or possibly tire imbalance.
To find out if tires are causing the noise or vibra-tion, drive the vehicle over a smooth road at varyingspeeds. Note the noise level during acceleration anddeceleration. The engine, differential and exhaustnoises will change as speed varies, while the tirenoise will usually remain constant.
DIAGNOSIS AND TESTING - TIRE/VEHICLELEAD
Use the following Vehicle Lead Diagnosis And Cor-rection Chart to diagnose and correct a vehicle leador drift problem (Fig. 16).
Fig. 15 Tire Wear Patterns
22 - 8 TIRES/WHEELS TJ
TIRES (Continued)
Fig. 16 VEHICLE LEAD DIAGNOSIS AND CORRECTION CHART
TJ TIRES/WHEELS 22 - 9
TIRES (Continued)
STANDARD PROCEDURE - REPAIRING LEAKSFor proper repairing, a radial tire must be removed
from the wheel. Repairs should only be made if thedefect, or puncture, is in the tread area (Fig. 17). Thetire should be replaced if the puncture is located inthe sidewall.
Deflate tire completely before removing the tirefrom the wheel. Use lubrication such as a mild soapsolution when dismounting or mounting tire. Usetools free of burrs or sharp edges which could dam-age the tire or wheel rim.
Before mounting tire on wheel, make sure all rustis removed from the rim bead and repaint if neces-sary.
Install wheel on vehicle, and tighten to propertorque specification. (Refer to 22 - TIRES/WHEELS/WHEELS - STANDARD PROCEDURE).
CLEANING - TIRESRemove the protective coating on the tires before
delivery of a vehicle. This coating may cause deteri-oration of the tires.
To remove the protective coating, apply warmwater and let it soak for a few minutes. Afterwards,scrub the coating away with a soft bristle brush.Steam cleaning may also be used to remove the coat-ing.
NOTE: DO NOT use gasoline, mineral oil, oil-basedsolvent or a wire brush for cleaning.
SPECIFICATIONS
TIRE SIZE
DESCRIPTION SPECIFICATION
TIRE P215/75R15
TIRE P225/75R15
TIRE LT245/75R16
TIRE 30x9.50R15
SPARE TIRE
DESCRIPTIONThe temporary spare tire is designed for emer-
gency use only. The original tire should be repairedor replaced at the first opportunity, then reinstalled.Do not exceed speeds of 50 M.P.H. when using thetemporary spare tire. Refer to Owner’s Manual forcomplete details.
SPARE TIRE CARRIER
REMOVAL(1) Remove the spare tire from the wheel bracket
(Fig. 18) .(2) Remove the bolts that attach the tire bracket
to the tailgate (Fig. 19) .(3) Disconnect CHMSL.(4) Remove the bracket and the gaskets from the
tailgate.
Fig. 17 Tire Repair Area1 - REPAIRABLE AREA
Fig. 18 Spare Tire1 - WHEEL NUT2 - CHMSL3 - LOCK NUT
22 - 10 TIRES/WHEELS TJ
TIRES (Continued)
INSTALLATION(1) Position the gaskets and the tire bracket on the
tailgate and install the bolts. Tighten the bolts to 24N·m (17 ft. lbs.) torque.
(2) Connect CHMSL connector.(3) Install the spare tire on the tire bracket.
WHEELS
DESCRIPTIONThe rim size is on the vehicle safety certification
label located on the drivers door shut face. The sizeof the rim is determined by the drivetrain package.Original equipment wheels/rims are designed foroperation up to the specified maximum vehicle capac-ity.
All models use stamped steel, cast aluminum orforged aluminum wheels. Every wheel has raised sec-tions between the rim flanges and rim drop wellcalled safety humps (Fig. 20) .
Initial inflation of the tire forces the bead overthese raised sections. In case of rapid loss of air pres-sure, the raised sections help hold the tire on thewheel.
The wheel studs and nuts are designed for specificapplications. All aluminum and some steel wheelshave wheel stud nuts with an enlarged nose. Thisenlarged nose is necessary to ensure proper retentionof the wheels. Do not use replacement studs or nutswith a different design or lesser quality.
DIAGNOSIS AND TESTING - WHEELINSPECTION
Inspect wheels for:• Excessive run out• Dents or cracks• Damaged wheel lug nut holes• Air Leaks from any area or surface of the rim
NOTE: Do not attempt to repair a wheel by hammer-ing, heating or welding.
If a wheel is damaged an original equipmentreplacement wheel should be used. When obtainingreplacement wheels, they should be equivalent inload carrying capacity. The diameter, width, offset,pilot hole and bolt circle of the wheel should be thesame as the original wheel.
WARNING: FAILURE TO USE EQUIVALENTREPLACEMENT WHEELS MAY ADVERSELYAFFECT THE SAFETY AND HANDLING OF THEVEHICLE. USED WHEELS ARE NOT RECOM-MENDED. THE SERVICE HISTORY OF THE WHEELMAY HAVE INCLUDED SEVERE TREATMENT ORVERY HIGH MILEAGE. THE RIM COULD FAIL WITH-OUT WARNING.
Fig. 19 Spare Tire Bracket1 - BUMPER2 - GASKET3 - TAILGATE4 - SPARE TIRE BRACKET
Fig. 20 Safety Rim1 - FLANGE2 - RIDGE3 - WELL
TJ TIRES/WHEELS 22 - 11
SPARE TIRE CARRIER (Continued)
STANDARD PROCEDURE
STANDARD PROCEDURE - WHEELINSTALLATION
The wheel studs and nuts are designed for specificapplications. They must be replaced with equivalentparts. Do not use replacement parts of lesser qualityor a substitute design. All aluminum and some steelwheels have wheel stud nuts which feature anenlarged nose. This enlarged nose is necessary toensure proper retention of the aluminum wheels.
Before installing the wheel, be sure to remove anybuild up of corrosion on the wheel mounting surfaces.Ensure wheels are installed with good metal-to-metalcontact.
To install the wheel, first position it properly onthe mounting surface. All wheel nuts should then betightened just snug. Gradually tighten them insequence to the proper torque specification (Fig. 21).
WARNING: NEVER USE OIL OR GREASE ONSTUDS OR NUTS. INSTALLING WHEELS WITHOUTGOOD METAL-TO-METAL CONTACT OR USINGCHROME PLATED LUG NUTS WITH CHROMEPLATED WHEELS COULD CAUSE LOOSENING OFWHEEL NUTS. THIS COULD AFFECT THE SAFETYAND HANDLING OF THE VEHICLE.
WHEEL REPLACEMENTWheels must be replaced if they have:• Excessive runout• Bent or dented• Leak air through welds• Have damaged bolt holes
Wheel repairs employing hammering, heating, orwelding are not allowed.
Original equipment wheels are available throughyour dealer. Replacement wheels from any othersource should be equivalent in:
• Load carrying capacity• Diameter• Width• Offset• Mounting configurationFailure to use equivalent replacement wheels may
affect the safety and handling of your vehicle.Replacement with used wheels is not recommended.Their service history may have included severe treat-ment.
STANDARD PROCEDURE - WHEELREPLACEMENT
The wheel studs and nuts are designed for specificapplications. They must be replaced with equivalentparts. Do not use replacement parts of lesser qualityor a substitute design. All aluminum and some steelwheels have wheel stud nuts which feature anenlarged nose. This enlarged nose is necessary toensure proper retention of the aluminum wheels.
Wheels must be replaced if they have:• Excessive runout• Bent or dented• Leak air through welds• Have damaged bolt holesWheel repairs employing hammering, heating, or
welding are not allowed.Original equipment wheels are available through
your dealer. Replacement wheels from any othersource should be equivalent in:
• Load carrying capacity• Diameter• Width• Offset• Mounting configurationFailure to use equivalent replacement wheels may
affect the safety and handling of your vehicle.Replacement with used wheels is not recommended.Their service history may have included severe treat-ment.Fig. 21 Lug Nut Tightening Pattern
22 - 12 TIRES/WHEELS TJ
WHEELS (Continued)
SPECIFICATIONS
TORQUE CHART
TORQUE SPECIFICATIONS
DESCRIPTION N·m Ft. Lbs. In. Lbs.
Lug Nut1/2 X 20 with 60° Cone
115-156 85-115 —
STUDS
REMOVAL(1) Raise and support vehicle.(2) Remove wheel and tire assembly.(3) Remove brake caliper, caliper adapter and
rotor, (Refer to 5 - BRAKES/HYDRAULIC/MECHAN-ICAL/ROTORS - REMOVAL).
(4) Remove stud from hub with Remover C-4150A(Fig. 22).
INSTALLATION(1) Install new stud into hub flange.(2) Install three washers onto stud, then install
lug nut with the flat side of the nut against thewashers.
(3) Tighten lug nut until the stud is pulled intothe hub flange. Verify that the stud is properlyseated into the flange.
(4) Remove lug nut and washers.(5) Install the brake rotor, caliper adapter, and cal-
iper, (Refer to 5 - BRAKES/HYDRAULIC/MECHAN-ICAL/ROTORS - INSTALLATION).
(6) Install wheel and tire assembly, use new lugnut on stud or studs that were replaced. (Refer to 22- TIRES/WHEELS/WHEELS - STANDARD PROCE-DURE).
(7) Remove support and lower vehicle.
Fig. 22 Wheel Stud Removal1 - REMOVER2 - WHEEL STUD
TJ TIRES/WHEELS 22 - 13
WHEELS (Continued)
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