suspension CHRYSLER VOYAGER 1996 Workshop Manual

SHOCK ABSORBER
REMOVE/INSTALL
(1) Raise vehicle. Vehicle is to be raised and sup-
ported on jackstands or on a frame contact type
hoist. See Hoisting in the Lubrication And Mainte-
nance section of this service manual.
(2) Support the rear axle of the vehicle using 2
jackstands positioned at the outer ends of the axle.
NOTE: If the shock absorber lower mounting bolt
deflects upward during removal, raise axle by
adjusting the support jack. If the lower shock
absorber bolt deflects downward during removal,
lower the axle by adjusting the support jack.
(3) Remove the shock absorber lower mounting
bolt.
(4) While holding shock absorber, remove the
shock absorber upper mounting bolt.
(5) To install the shock absorber use the reverse
sequence of its removal.
(6) Lower the vehicle to the ground so the full
weight of the vehicle is supported by the suspension.
(7) Tighten the upper and lower shock absorber
mounting bolt to their specified torques.
REAR TRACK BAR
REMOVE
(1) Remove the nut and bolt mounting the track
bar to the rear axle (Fig. 19).
(2) Remove the nut and bolt attaching the track
bar to the track bar mount on the body of the vehicle.
Remove the track bar from the track bar mount.
INSTALL
(1) Install the track bar first into the body mount
for the track bar (Fig. 20). Install the track bar boltwith the head of the bolt facing toward the rear of
the vehicle (Fig. 21). Do not tighten.
(2) Install the track bar into its mounting bracket
on the rear axle (Fig. 19). Install the track bar bolt
with the head of the bolt facing toward the rear of
the vehicle. Do not tighten.
(3) Lower the vehicle to the ground until the full
weight of the vehicle is supported by the wheels.
Tighten both track bar attaching bolts to a torque of
95 N´m (70 ft. lbs.).
TRACK BAR MOUNT
REMOVE
(1) Remove the track bar from the track bar
mount.
(2) Remove the three bolts attaching the track bar
mount to the body (Fig. 22).
Fig. 19 Track Bar Mounting To Axle
Fig. 20 Track Bar Installation
Fig. 21 Track Bar Bolt Installation
NSSUSPENSION 2 - 45
REMOVAL AND INSTALLATION (Continued)

INSTALLATION
(1) For installation, reverse removal procedure.
Tighten bolts to 61 N´m (45 ft. lbs.).
STABILIZER BAR
REMOVAL
(1) Raise vehicle. Vehicle is to be raised and sup-
ported on jack stands or on a frame contact type
hoist. See Hoisting in the Lubrication and Mainte-
nance section of this service manual.
(2) Remove the 2 lower bolts which hold the stabi-
lizer bar to the link arm on each side of the vehicle.
(3) Loosen but do not fully remove the four bolts
that attach the stabilizer bar bushing retainers to
the rear axle brackets.
(4) While holding the stabilizer bar in place. Fully
remove the 4 bolts loosened in step 3.
(5) Remove the stabilizer bar from the vehicle.
(6) If the link arms need to be serviced, remove
the upper link arm to bracket bolt. Then remove link
arm from frame rail attaching bracket.
INSPECTION
Inspect for broken or distorted clamps, retainers,
and bushings. If bushing replacement is required, the
stabilizer bar to axle bushings can be removed from
the stabilizer bar by opening the split.
INSTALLATION
(1) Install the link arms onto the frame rail brack-
ets. DO NOT TIGHTEN.
(2) Position the axle to stabilizer bar bushings on
the stabilizer bar with the slit in the bushings facing
up.(3) Lift the stabilizer bar onto the rear axle and
install the retainers and the four mounting bolts. DO
NOT TIGHTEN.
(4) Install the two lower link arm bolts on the sta-
bilizer bar. DO NOT TIGHTEN.
(5) Lower the vehicle so that the full weight of the
vehicle is on all four tires. With the vehicle at its
curb height, tighten all attaching bolts to the torques
listed below.
²Stabilizer bar bushing to axle bracket bolts 61
N´m (45 ft. lbs.)
²Link arm to frame rail bracket 61 N´m (45 ft.
lbs.)
²Stabilizer bar to link arm 61 N´m (45 ft. lbs.)
²Frame rail bracket to frame rail 61 N´m (45 ft.
lbs.)
JOUNCE BUMPER
There are two types of jounce bumpers available
depending on which suspension option the vehicle is
equipped with.
REMOVAL-STANDARD
The jounce bumper is serviced as an assembly. The
jounce bumper mounts to the frame rail at a weld
nut located on the frame rail (Fig. 23).
(1) Using the proper tool, remove the bolt attach-
ing the jounce bumper to frame rail.
(2) Remove the jounce bumper from the frame rail.
INSTALLATION-STANDARD
(1) For installation, reverse the removal procedure.
Tighten the jounce bumper mounting bolt to a torque
of 33 N´m (290 in. lbs.).
Fig. 22 Track Bar Mount
Fig. 23 Jounce Bumper-Standard
2 - 46 SUSPENSIONNS
REMOVAL AND INSTALLATION (Continued)

REMOVAL-HEAVY DUTY
The jounce bumpers are serviced as an assembly.
The jounce bumpers screw into a weld nut located in
the frame rail (Fig. 24).
(1) Using slip-joint pliers grasp the base of the
jounce bumper. Turn the base counterclockwise (Fig.
25).
(2) Remove the jounce bumper from the frame rail.
INSTALLATION-HEAVY DUTY
(1) For installation, reverse the removal procedure.
Tighten the jounce bumper to a torque of 33 N´m
(290 in. lbs.).
LEAF SPRING FRONT MOUNT
REMOVE
(1) Loosen the pivot bolt attaching the front of the
leaf spring to the spring mount (Fig. 26).
(2) Install a jackstand under the side of the axle
having the leaf spring mount removed. Using thejackstand support the weight of the axle and leaf
spring.
(3) Remove the lower mounting bolt from the
shock absorber.
(4) Remove the bolts attaching the leaf spring
front mount (Fig. 26) to the body of the vehicle.
(5) Lower the leaf spring and remove the front
mount from the spring.
INSTALLATION
(1) For installation, reverse removal procedure. Do
not tighten front through bolt fully until vehicle is
lowered and the full vehicle weight is applied to the
rear wheels. Tighten leaf spring front mount bolts to
61 N´m (45 ft. lbs.). Tighten leaf spring front through
bolt to 156 N´m (115 ft. lbs.).
LEAF SPRING REAR MOUNT
REMOVE
(1) Remove the attaching nuts and bolts from the
leaf spring rear shackle (Fig. 27) and (Fig. 28).
Fig. 24 Jounce Bumper-Heavy Duty
Fig. 25 Bumper Replacement
Fig. 26 Leaf Spring Front Mount
Fig. 27 Leaf Spring Shackle Nuts (FWD)
NSSUSPENSION 2 - 47
REMOVAL AND INSTALLATION (Continued)

(2) Install a jackstand under the side of the axle
having the leaf spring mount removed. Using the
jackstand, support the weight of the axle and leaf
spring.
(3) Remove the lower mounting bolt from the
shock absorber.
(4) Remove the bolts attaching the leaf spring rear
mount to the body of the vehicle (Fig. 29).
(5) Lower the jackstand and the rear of the leaf
spring. Remove the shackle from the leaf spring
bushing.
INSTALL
CAUTION: The following sequence must be fol-
lowed when tightening the pin nuts on the rearhanger for the rear leaf spring. First the hanger pin
nuts must be tightened to the specified torque.
Then tighten the retaining bolts for the inner to
outer half of the spring hanger to the specified
torque. This sequence must be followed to avoid
bending the spring hanger.
(1) For installation, reverse removal procedure. Do
not tighten rear spring shackle nuts fully until vehi-
cle is lowered and the full vehicle weight is applied
to the rear wheels. Tighten rear spring mount bolts
to 61 N´m (45 ft. lbs.). Tighten shackle nuts to 61
N´m (45 ft. lbs.).
SPECIFICATIONS
REAR SUSPENSION FASTENER TORQUES
DESCRIPTION TORQUE
SHOCK ABSORBER MOUNTING BOLTS:
Standard Shock Absorber......101 N´m (75 ft. lbs.)
Self Load Leveling Shock
Absorber.................101 N´m (75 ft. lbs.)
JOUNCE BUMPER:
To Frame Rail..............33N´m(290 in. lbs.)
TRACK BAR:
To Axle And Mounting
Bracket Pivot Bolt..........95N´m(70ft.lbs.)
Bracket To Body Attaching......61N´m(45ft.lbs.)
LEAF SPRING:
Spring Plate To Axle
Attaching Bolts............108 N´m (80 ft. lbs.)
Rear Mount To Body Bolts......61N´m(45ft.lbs.)
Front Mount To Body Bolts......61N´m(45ft.lbs.)
To Front Hanger
Mounting Nut............156 N´m (115 ft. lbs.)
Shackle Plate Nuts............61N´m(45ft.lbs.)
STABILIZER BAR:
Bushing Retainer To Axle
Attaching Bolts.............61N´m(45ft.lbs.)
Attaching Link Nuts...........61N´m(45ft.lbs.)
Frame Rail Bracket
Mounting Bolts.............61N´m(45ft.lbs.)
Link Arm To Frame
Rail Bracket...............61N´m(45ft.lbs.)
HUB AND BEARING:
To Axle Mounting Bolts........129 N´m (95 ft. lbs.)
Stub Axle Nut..............224 N´m (180 ft. lbs.)
Wheel Mounting
LugNut...........110-135 N´m (85-115 ft. lbs.)
Fig. 28 Leaf Spring Shackle Nuts/Bolts (AWD)
Fig. 29 Rear Spring Mount
2 - 48 SUSPENSIONNS
REMOVAL AND INSTALLATION (Continued)

SUSPENSION
CONTENTS
page
SPECIFICATIONS
ALIGNMENT SPECIFICATIONS............. 1
SPECIFICATIONS
ALIGNMENT SPECIFICATIONS
All alignment specifications are to be checked and
adjusted with the vehicle at its correct ride height.
Refer to the ride height specifications listed in the
following alignment specifications chart.
* Camber is adjustable using the Mopar Cam-
ber Adjustment Service Kit. Refer to the Mopar
Parts Catalog for the required service kit part
number.
** Caster is not adjustable. If found to be out
of specification check for proper ride heights
and damaged/worn out suspension components
and replace as necessary.
*** Toe-In is positive.**** Toe, Camber and thrust angle are not
adjustable. If found to be out of specification
check for proper ride heights and damaged/
worn out suspension components and replace
as necessary.
***** When Measuring ride heights: 1) Ensure
that the tire pressures are correct. 2) Jounce
the vehicle at the bumper several times and
release at the bottom of the stroke. 3) Measure
from the ground to the outboard, lower, center
section of the fender wheel well opening. Ride
heights are not adjustable. If found to be out of
specification check for damaged and/or worn
out suspension components and replace as nec-
essary.
NS/GSSUSPENSION 2 - 1

ALIGNMENT ANGLE TIRE SIZES TIRE SIZESALTERNATIVE
FUELS
P205/75/R14 P205/75/R15 C.N.G.
P215/65/R15 P215/65/R16 ELECTRIC
* FRONT INDIVIDUAL CAMBER IN
DEGREES............................................+0.15É +or- 0.40É +0.05É +or- 0.40É +0.15É +or- 0.40É
Front Side To Side Camber Difference Not
To Exceed...................0.00É - 0.50É MAX 0.00É - 0.50É MAX 0.00É - 0.50É MAX
** FRONT INDIVIDUAL CASTER IN
DEGREES............................................+1.40É + or - 1.00É +1.40É + or - 1.00É +1.40É +or- 1.00É
Front Side To Side Caster Difference Not To
Exceed.....................................0.00É - 1.00É MAX 0.00É - 1.00É MAX 0.00É - 1.00É MAX
*** FRONT INDIVIDUAL TOE RIGHT/
LEFT.........................................+0.05É+or- 0.10É +0.05É +or- 0.10É +0.05É +or- 0.10É
FRONT TOTAL
TOE....................................................
Specified In Degrees+0.10É +or- 0.20É +0.10É +or- 0.20É +0.10É +or- 0.20É
FRONT SIDE TO SIDE TOE
DIFFERENTIAL.....................................0.00É - 0.06É MAX 0.00É - 0.06É MAX 0.00É - 0.06É MAX
****REAR INDIVIDUAL CAMBER IN
DEGREES............................................+0.00É +or- 0.25É +0.00É +or- 0.25É -0.10É +or- 0.25
REAR INDIVIDUAL TOE RIGHT/
LEFT........................................0.00É +or- 0.40É 0.00É +or- 0.40É 0.00É +or- 0.40É
**** REAR TOTAL TOE.....................
Specified In Degrees
TOE OUT: When Backed On Alignment Rack
Is TOE In When Driving0.00É +or- 0.40É 0.00É +or- 0.40É 0.00É +or- 0.40É
****REAR THRUST ANGLE................ 0.00É +or- 0.30É 0.00É +or- 0.30É 0.00É +or- 0.30É
STEERING WHEEL ANGLE................ 0.00É +or- 2.50É 0.00É +or- 2.50É 0.00É +or- 2.50É
FRONT RIDE HEIGHT (MEASURED AT
TOP OF FENDER WHEEL
OPENING)............................................747.5 mm
+or-10.0mm753.5 mm
+or-10.0mm783.5 mm
+or-10.0mm
FRONT RIDE HEIGHT SIDE TO SIDE
DIFFERENTIAL.....................................0.0 mm 12.5 mm
MAX0.0 mm 12.5 mm
MAX0.0 mm 12.5 mm
MAX
*****REAR RIDE HEIGHT (MEASURED AT
TOP OF FENDER WHEEL
OPENING)............................................766.0 mm
+or-10.0mm772.0 mm
+or-10.0mm802.5 mm
+or-10.0mm
*****REAR RIDE HEIGHT SIDE TO SIDE
DIFFERENTIAL.....................................0.0 mm 12.5 mm
MAX0.0 mm 12.5 mm
MAX0.0 mm 12.5 mm
MAX
2 - 2 SUSPENSIONNS/GS
SPECIFICATIONS (Continued)

The caliper is a one piece casting with the inboard
side containing a single piston cylinder bore.
The phenolic piston is 60 mm (2.36 inch) in diam-
eter.
A square cut rubber piston seal is located in a
machined groove in the cylinder bore. It provides a
hydraulic seal between the piston and the cylinder
wall (Fig. 4).
The molded rubber dust boot mounts in a counter
bore of the cylinder bore opening and in a groove
which is machined in the outer surface of the piston
(Fig. 4). This prevents contamination of the piston
and the bore area.
As lining wears, reservoir level will go down. If
fluid has been added, reservoir overflow may occur
when the piston is pushed back into the new lining
position. Overflowing can be avoided by removing a
small amount of fluid from the master cylinder res-
ervoir.
REAR DRUM BRAKES
The rear wheel drum brakes are a two shoe, inter-
nal expanding type with an automatic adjuster screw.
The automatic adjuster screw is actuated each time
the brakes are applied. The automatic adjuster screw
is located directly below the wheel cylinder.
REAR DISC BRAKES
The rear disc brakes are similar to front disc
brakes, however, there are several distinctive fea-
tures that require different service procedures. The
single piston, floating caliper rear disc brake system
includes a hub and bearing assembly, adapter, rotor,
caliper, and brake shoes. The parking brake system
on vehicles equipped with rear disc brakes, consists
of a small duo-servo drum brake mounted to the cal-
iper adapter. The drum brake shoes expand out
against a braking surface (hat section) on the inside
area of the rotor.
This vehicle is equipped with a caliper having a 42
mm (1.65 in.) piston and uses a 15 inch solid non-
vented rotor.The disc brake caliper floats on rubber bushings
using threaded guide pin bolts which are attached to
the back side of the adapter.
The adapter and rotor shield are mounted to the
rear axle. The adapter is used to mount the brake
shoes and actuating cables for the parking brake sys-
tem. The adapter is also used to mount the rear cal-
iper. The adapter has two machined abutments
which are used to position and align the caliper and
brake shoes for movement inboard and outboard (Fig.
5).
PARKING BRAKE SYSTEM OPERATION
The rear wheel service brakes also act as parking
brakes. The brake shoes are mechanically operated
by an internal lever and strut connected to a flexible
steel cable. The rear cables and intermediate cable
are connected to the front cable by an equalizer. The
front cable extends to the parking brake foot pedal
assembly.
PROPORTIONING VALVES
FIXED PROPORTIONING VALVE
The hydraulic brake system on all vehicles is diag-
onally split. This means that the left front and right
rear brakes are on one hydraulic circuit with the
right front and left rear brakes on the other hydrau-
lic circuit.
On vehicles equipped with ABS brakes, the brake
systems hydraulic control unit (HCU) is mounted to
the front suspension crossmember on the driver's
side of the vehicle. The (HCU) acts as the hydraulic
system junction block, diagonally splitting the brakes
hydraulic system.
All vehicles equipped with ABS brakes use 2 fixed
proportioning valves. The fixed proportioning valves
are mounted in a common bracket on the left frame
rail at the rear of the vehicle (Fig. 6).
Fig. 4 Caliper Piston Seal Function For Automatic
Adjustment
Fig. 5 Rear Disc Brake Components
NSBRAKES 5 - 5
DESCRIPTION AND OPERATION (Continued)

FIXED PROPORTIONING VALVE OPERATION
The fixed proportioning valve is made out of alumi-
num and has an integral mounting bracket. The
fixed proportioning valve is non-serviceable compo-
nent and must be replaced as an assembly if found to
be functioning improperly.
The fixed proportioning valve is mounted to the
bottom of the left rear frame rail, just forward of the
rear shock absorber to frame rail mounting location
(Fig. 6). The proportioning valve has 2 inlet ports for
brake fluid coming from the ABS modulator, and 2
outlet ports for brake fluid going to the rear wheel
brakes.
The fixed proportioning valve operates by allowing
full hydraulic pressure to the rear brakes up to a set
point, called the valve's split point. Beyond this split
point the proportioning valve reduces the amount of
hydraulic pressure to the rear brakes according to a
certain ratio.
Thus, on light brake pedal applications the propor-
tioning valve allows approximately equal brake
hydraulic pressure to be supplied to both the front
and rear brakes. On heavier brake pedal applications
though, the proportioning valve will control hydraulic
pressure to the rear brakes, so that hydraulic pres-
sure at the rear brakes will be lower than that at the
front brakes. This controlled hydraulic pressure to
the rear brakes prevents excessive rear wheel ABS
cycling during moderate stops.
HEIGHT SENSING PROPORTIONING VALVE
CAUTION: The use of after-market load leveling or
load capacity increasing devices on this vehicle are
prohibited. Using air shock absorbers or helper
springs on this vehicle will cause the height sens-
ing proportioning valve to inappropriately reduce
the hydraulic pressure to the rear brakes. This inap-
propriate reduction in hydraulic pressure potentiallycould result in increased stopping distance of the
vehicle.
On vehicles not equipped with ABS brakes, the
brake systems hydraulic control unit (HCU) is
replaced by a junction block (Fig. 7). The junction
block is made of aluminum and is mounted to the
front suspension crossmember on the drivers side of
the vehicle in the same location as the (HCU) on an
ABS equipped vehicle. The junction block is perma-
nently attached to its mounting bracket and must be
replaced as an assembly with its mounting bracket.
The junction block is used for diagonally splitting the
brake's hydraulic system.
Vehicles not equipped with ABS brakes use a
height sensing proportioning valve. The height sens-
ing proportioning valve is mounted on the left frame
rail at the rear of the vehicle (Fig. 8). The height
sensing proportioning valve uses an actuator assem-
bly (Fig. 8) to attach the proportioning valve to the
left rear spring for sensing changes in vehicle height.
HEIGHT SENSING PROPORTIONING VALVE OPERATION
The height sensing proportioning valve regulates
the hydraulic pressure to the rear brakes. The pro-
portioning valve regulates the pressure by sensing
the load condition of the vehicle through the move-
ment of the proportioning valve actuator assembly
Fig. 6 Fixed Proportioning Valve Location
Fig. 7 Junction Block Location
Fig. 8 Height Sensing Proportioning Valve
5 - 6 BRAKESNS
DESCRIPTION AND OPERATION (Continued)

(Fig. 8). The actuator assembly is mounted between
the height sensing proportioning valve and the actua-
tor bracket on the left rear leaf spring (Fig. 8). As the
rear height of the vehicle changes depending on the
load the vehicle is carrying the height change is
transferred to the height sensing proportioning valve.
This change in vehicle height is transferred through
the movement of the left rear leaf spring. As the posi-
tion of the left rear leaf spring changes this move-
ment is transferred through the actuator bracket
(Fig. 8) to the actuator assembly (Fig. 8) and then to
the proportioning valve.
Thus, the height sensing proportioning valve
allows the brake system to maintain the optimal
front to rear brake balance regardless of the vehicle
load condition. Under a light load condition, hydrau-
lic pressure to the rear brakes is minimized. As the
load condition of the vehicle increases, so does the
hydraulic pressure to the rear brakes.
The proportioning valve section of the valve oper-
ates by transmitting full input hydraulic pressure to
the rear brakes up to a certain point, called the split
point. Beyond the split point the proportioning valve
reduces the amount of hydraulic pressure to the rear
brakes according to a certain ratio. Thus, on light
brake applications, approximately equal hydraulic
pressure will be transmitted to the front and rear
brakes. At heavier brake applications, the hydraulic
pressure transmitted to the rear brakes will be lower
then the front brakes. This will prevent premature
rear wheel lock-up and skid.
The height sensing section of the valve thus
changes the split point of the proportioning valve,
based on the rear suspension height of the vehicle.
When the height of the rear suspension is low, the
proportioning valve interprets this as extra load and
the split point of the proportioning valve is raised to
allow more rear braking. When the height of the rear
suspension is high, the proportioning valve interprets
this as a lightly loaded vehicle and the split point of
the proportioning valve is lowered and rear braking
is reduced.
CHASSIS TUBES AND HOSES
The purpose of the chassis brake tubes and flex
hoses is to transfer the pressurized brake fluid devel-
oped by the master cylinder to the wheel brakes of
the vehicle. The chassis tubes are steel with a corro-
sion resistant coating applied to the external surfaces
and the flex hoses are made of reinforced rubber. The
rubber flex hoses allow for the movement of the vehi-
cles suspension.
MASTER CYLINDER
The master cylinder (Fig. 9) consists of the follow-
ing components. The body of the master cylinder isan anodized aluminum casting. It has a machined
bore to accept the master cylinder piston and
threaded ports with seats for the hydraulic brake
line connections. The brake fluid reservoir of the
master cylinder assembly is made of a see through
polypropylene type plastic. A low fluid switch is also
part of the reservoir assembly.
This vehicle uses 3 different master cylinders.
Master cylinder usage depends on what type of brake
system the vehicle is equipped with. If a vehicle is
not equipped with antilock brakes, or is equipped
with antilock brakes without traction control, a con-
ventional compensating port master cylinder is used.
If a vehicle is equipped with antilock brakes with
traction control, a dual center port master cylinder is
used.
The third master cylinder used on this vehicle is
unique to vehicles equipped with four wheel disc
brakes. The master cylinder used for this brake
application has a different bore diameter and stroke
then the master cylinder used for the other available
brake applications.
The master cylinders used on front wheel drive
applications (non four wheel disc brake vehicles)
have a master cylinder piston bore diameter of 23.8
mm. The master cylinder used on the all wheel drive
applications (four wheel disc brake vehicles) have a
master cylinder piston bore diameter of 25.4 mm.
When replacing a master cylinder, be sure to
use the correct master cylinder for the type of
brake system the vehicle is equipped with.
The master cylinder is not a repairable component
and must be replaced if diagnosed to be functioning
improperly
CAUTION: Do not hone the bore of the cylinder as
this will remove the anodized surface from the bore.
The master cylinder primary outlet port supplies
hydraulic pressure to the right front and left rear
Fig. 9 Master Cylinder Assembly
NSBRAKES 5 - 7
DESCRIPTION AND OPERATION (Continued)

both the rotor and one wheel stud on the high side of
the runout. This will ensure that the original location
of the rotor in relation to the hub can be retained
(Fig. 14). Remove rotor from hub.
Thoroughly clean the front surface of the front
hub. Then install Dial Indicator, Special Tool C-3339
and Mounting Adaptor, Special Tool SP-1910 on
steering knuckle. Position stem so it contacts hub
face near outer diameter. Care must be taken to posi-
tion stem outside the stud circle but inside the cham-
fer on the hub face (Fig. 15).Clean hub surface
before checking.
Lateral runout should not exceed 0.08 mm (0.003
inch). If runout exceeds this specification, the hub
must be replaced. See Suspension Group 2. If lateral
runout of the hub does not exceed this specification,
install rotor on hub with chalk marks two wheel
studs apart (Fig. 16). Tighten nuts in the properse-
quence and torque to specification. Finally, check lat-eral runout of rotor to see if lateral runout is now
within specification.
If lateral runout is not within specification, install
a new rotor or reface rotor, being careful to remove
as little rotor material as possible from each side of
rotor. Remove equal amounts from each side of rotor.
Do not reduce thickness below minimum thickness
marking cast into the un-machined surface (Fig. 17)
of the rotor .
Thickness variation measurements of the rotor
should be made in conjunction with the lateral
runout measurements. Measure the thickness of the
rotor at 12 circumferentially equal points with a
Fig. 16 Indexing Rotor And Wheel Stud
Fig. 13 Checking Brake Rotor For Runout
Fig. 14 Marking Rotor And Wheel Stud
Fig. 15 Checking Disc Brake Rotor For Runout
NSBRAKES 5 - 15
DIAGNOSIS AND TESTING (Continued)