
SECTIONI
FRONTSUSPENSIONSYSTEM
Page
DataandSpecifications8
1.
FrontWheelAlignment7
2.
FactorsofFrontWheelAlignment7
3.FrontWheelAlignmentCorrections10
4.TieRodEnds12
5.SteeringKnuckleandSupport12
6.UpperControlArm14
7.UpperControlArmPin,BushingandDustSeal14
8.LowerControlArmandFrontSpring14
9.
FrontShockAbsorber15
10.
DiagnosisProcedures16
1.
FRONTWHEELALIGNMENT
Theneedforcheckingthealignmentofthefront
wheelsisusuallyindicatedbythewaythecar
steers,suchasa tendencyforthecartoleadto
oneside,ortowander.Certaintypesoftirewear,
suchastoe-inortoe-outwear,orcamberwear,
indicatetheneedforcheckingsomeofthefactors
ofwheelalignment.
Ifitisconsiderednecessarytocheckthewheel
alignmentofa newcar,itshouldberemembered
thatthefrontwheel suspensionpartsareclosely
fittedandtheirmovementis
stiff.
Asa result,a
newcarwillnotalwayssettletothepositionwhere
correctreadingscanbeobtained.Whenservicing
anewcar,itisbesttocheckonlythetoe-inofthe
frontwheels.Afterthecarhasbeendrivenabout
3,000miles,thestiffnessofnewpartswillbere-
lieved,andifwheelalignmentcorrectionsare
necessary,theycanbemadeatthenormalriding
level.
IMPORTANT
Frontwheel alignment equipment should be
checked frequently with the proper checking
equipment. Equipmentthat has
been
damaged
by dropping or rough handling should be care-
fully checked and adjusted before it is
used.
The floor must be level when using portable
equipment.
2.
FACTORSOFFRONTWHEEL
ALIGNMENT
Thefactorsoffrontwheelalignmentaregener-
allyconsideredtobecamberandkingpininclina-
tion,
caster,toe-inofthefrontwheelsinthe
straight-aheadposition,andtoe-outofthefront
wheelsonturns.
Inadditiontothesefactors,thereareothercon-
ditionsthataffectsteeringcontrol.Theseare:im-
propertirepressure;wheelwobble;unbalanced
wheel andtireassemblies;saggedorbrokenfront
orrearsprings;damagedsteeringgearparts;
draggingbrakesorbentframe.
Frontwheelalignmentsettingsmustbeheldto
specificationswithinreasonablelimitsinorder
thatthevehiclemayexhibititsbeststeeringchar-
acteristicsandinordertoholdtherateandun-
evennessoftiretreadweartoa minimum.
Wheelalignmentmeasurementsshouldbetaken
withrecommendedtirepressureswithnopassen-
gerload,andwithcarstandinginitsnormallevel
positionwithnojacksunderit.Camber,casterand
toemeasurementsmustbemadewiththefront
wheelsonfloatingturn-tables.
CAMBERANDKINGPININCLINATION
CAMBER
istheamountindegreesthatthefront
wheelsinclinefromtheverticalwhenviewedfrom
thefrontofthecar.Seefigure4.Wheelswithposi-
tivecamberarefartherapartatthetopthanatthe
bottom.Wheelswithnegativecamberarefarther
apartatthebottomthanatthetop.
MyMopar.com