Page 137 of 1938

CAUTION: The master cylinder is used to create
the seal for holding vacuum in the vacuum booster.
The vacuum seal on the master cylinder MUST be
replaced with a NEW seal whenever the master cyl-
inder is removed from the vacuum booster.
CAUTION: When removing the vacuum seal from
the master cylinder do not use a sharp tool.
(7) Using a soft tool such as a trim stick, remove
the vacuum seal from the master cylinder mounting
flange.
(8) Install aNEWvacuum seal on mounting flange
of the master cylinder (Fig. 128).
(9) Position master cylinder on studs of vacuum
booster, aligning push rod on vacuum booster with
master cylinder piston.
(10) Install the 2 nuts mounting the master cylin-
der to the vacuum booster (Fig. 124). Tighten both
mounting nuts to a torque of 25 N´m (225 in. lbs.).
(11) Install the wiper module drain hose (Fig. 124)
on the wiper module. Install the tie strap attaching
the wiper module drain hose to brake tube at the
master cylinder.Tie strap should be loosely tight-
ened so as not to collapse the wiper module
drain hose.
(12) Install the wiring harness connector on the
brake fluid level sensor in the master cylinder fluid
reservoir (Fig. 123).
(13) Install the throttle body and throttle cable
bracket on the intake manifold. Install the 2 bolts
(Fig. 122) attaching the throttle body to the intake
manifold and tighten to a torque of 25 N´m (225 in.
lbs.) Install clip (Fig. 122) attaching the wiring har-
ness to the throttle cable bracket.
(14) Install the wiring harness connectors on the
throttle position sensor and the AIS motor on throttle
body (Fig. 121).(15) Install the wiring harness connector (Fig. 120)
on the EGR valve transducer.
(16) Install the battery tray. Install the 2 bolts and
the nut (Fig. 119) attaching the battery tray to the
vehicle. Tighten the 2 bolts and the nut to a torque of
14 N´m (125 in lbs.).
(17) If vehicle is equipped with speed control,
install the speed control servo and bracket on the
battery tray. Install and securely tighten bolt attach-
ing bracket to battery tray.
(18) If vehicle is equipped with speed control,
install the wiring harness connector on the speed
control servo. Then connect the vacuum lines onto
the speed control servo and vacuum reservoir on bat-
tery tray.
(19) Install the air inlet resonator and hoses as an
assembly on the throttle body and air cleaner hous-
ing (Fig. 118). Securely tighten hose clamp at air
cleaner housing and throttle body.
(20) Install the battery and the battery thermal
guard.
(21) Install the battery cables on the battery.
(22) Check the operation of the stop lamp switch
and adjust if necessary.
JUNCTION BLOCK
REMOVE
(1) Using a brake pedal depressor, move and lock
the brake pedal to a position past its first 1 inch of
travel. This will prevent brake fluid from draining
out of the master cylinder when the brake tubes are
removed from the junction block.
(2) Raise vehicle on jackstands or centered on a
hoist. See Hoisting in the Lubrication And Mainte-
nance Group of this service manual.
CAUTION: Before removing the brake tubes from
the junction block, the junction block and the brake
tubes must be thoroughly cleaned. This is required
to prevent contamination from entering the brake
hudraulic system.
(3) Remove the 6 chassis brake tubes (Fig. 129)
from the junction block.
(4) Remove the bolt (Fig. 130) attaching the junc-
tion block mounting braket to the front suspension
cradle.
INSTALL
(1) Install the junction block and mounting bracket
(Fig. 130) on the front suspension cradle. Install the
attaching bolt and tighten to a torque of 28 N´m (250
in. lbs.).
(2) Install the 6 chassis brake tubes (Fig. 131) into
the inlet and outlet ports of the junction block.
Fig. 128 Vacuum Seal Installed On Master Cylinder
NSBRAKES 5 - 55
REMOVAL AND INSTALLATION (Continued)
Page 138 of 1938

Tighten all 6 tube nuts to a torque of 16 N´m (145 in.
lbs.).
(3) Bleed the brake system thoroughly to ensure
that all air has been expelled from the hydraulic sys-tem. See Bleeding Brake System in the Service
Adjustments section in this group of the service man-
ual for the proper bleeding procedure.
(4) Lower the vehicle.
(5) Road test the vehicle to verify proper operation
of the vehicles brake system.
PROPORTIONING VALVE (W/ABS BRAKES)
The actual proportioning valves of the proportion-
ing valve assembly are not serviceable or replaceable.
If a proportioning valve of the proportioning valve
assembly is not functioning properly, the fixed pro-
portioning valve must be replaced as an assembly.
REMOVE
(1) Using a brake pedal depressor, move and lock
the brake pedal to a position past its first 1 inch of
travel. This will prevent brake fluid from draining
out of the master cylinder when the brake tubes are
removed from the proportioning valve.
(2) Raise vehicle on jackstands or centered on a
hoist. See Hoisting in the Lubrication And Mainte-
nance Group of this service manual.
CAUTION: Before removing the brake tubes from
the proportioning valve, the proportioning valve and
the brake tubes must be thoroughly cleaned. This is
required to prevent contamination from entering the
proportioning valve or the brake tubes.
(3) Remove the 4 chassis brake lines from the inlet
and outlet ports of the proportioning valve (Fig. 132).
(4) Remove the bolts (Fig. 133) attaching the pro-
portioning valve bracket to the frame rail of the vehi-
cle. Remove the fixed proportioning valve assembly
from the vehicle.
Fig. 129 Junction Block Brake Tubes
Fig. 130 Junction Block Mounting
Fig. 131 Brake Tube Connections To Junction Block
Fig. 132 Chassis Brake Tubes At Proportioning
Valve
5 - 56 BRAKESNS
REMOVAL AND INSTALLATION (Continued)
Page 139 of 1938

INSTALL
CAUTION: When mounting the original or a
replacement proportioning valve on the frame rail of
the vehicle install the mounting bolts in only the
two forward holes of the mounting bracket (Fig.
133).
(1) Install proportioning valve assembly on the
frame rail of the vehicle. Install the proportioning
valve assembly attaching bolts (Fig. 133). Tighten the
attaching bolts to a torque of 14 N´m (125 in. lbs.).
(2) Install the 4 chassis brake lines (Fig. 132) into
the inlet and outlet ports of the proportioning valve
assembly. Tighten all 4 line nuts to a torque of 16
N´m (142 in. lbs.).
(3) Bleed the brake system thoroughly enough to
ensure that all air has been expelled from the
hydraulic system. See Bleeding Brake System in the
Service Adjustments section in this group of the ser-
vice manual for the proper bleeding procedure.
(4) Lower the vehicle to the ground.
(5) Road test the vehicle to verify proper operation
of the vehicles brake system.
PROPORTIONING VALVE (W/O ABS BRAKES)
The components of the proportioning valve assem-
bly are not serviceable or replaceable. If a component
of the proportioning valve assembly is not function-
ing properly, the proportioning valve must be
replaced as an assembly.
REMOVE
(1) Using a brake pedal depressor, move and lock
the brake pedal to a position past its first 1 inch of
travel. This will prevent brake fluid from draining
out of the master cylinder when the brake tubes are
removed from the proportioning valve.(2) Raise vehicle on jackstands or centered on a
hoist. See Hoisting in the Lubrication And Mainte-
nance Group of this service manual.
CAUTION: Before removing the brake tubes from
the proportioning valve, the proportioning valve and
the brake tubes must be thoroughly cleaned. This is
required to prevent contamination from entering the
proportioning valve or the brake tubes.
(3) Remove the 4 chassis brake tubes from the
inlet and outlet ports of the proportioning valve (Fig.
134).
(4) Remove the 2 bolts (Fig. 135) attaching the
proportioning valve to the proportioning valve
mounting bracket. Remove the proportioning valve
from the mounting bracket.
(5) Remove the hooked end of the proportioning
valve actuator (Fig. 136) from the isolator bushing on
the lever of the height proportioning valve (Fig. 136).
Fig. 133 Proportioning Valve Attachment To Vehicle
Fig. 134 Chassis Brake Tubes At Proportioning
Valve
Fig. 135 Proportioning Valve Mounting
NSBRAKES 5 - 57
REMOVAL AND INSTALLATION (Continued)
Page 140 of 1938

INSTALL
(1) Install the hooked end of the actuator on the
proportioning valve lever (Fig. 136).Be sure isola-
tor bushing on lever of proportioning valve
(Fig. 136) is fully seated in hook of actuator.
NOTE: When installing height sensing proportion-
ing valve on mounting bracket be sure proportion-
ing valve shield (Fig. 135) is installed between the
proportioning valve and the mounting bracket.
(2) Install height sensing proportioning valve on
mounting bracket. Install the proportioning valve
attaching bolts (Fig. 135). Tighten the attaching bolts
to a torque of 23 N´m (200 in. lbs.).
(3) Install the 4 chassis brake lines (Fig. 134) into
the inlet and outlet ports of the proportioning valve.
Tighten all 4 line nuts to a torque of 16 N´m (142 in.
lbs.).
(4) Adjust the proportioning valve actuator. See
Height Sensing Proportioning Valve in the Adjust-
ment Section in this group of the service manual for
the adjustment procedure.
(5) Bleed the brake system thoroughly to ensure
that all air has been expelled from the hydraulic sys-
tem. See Bleeding Brake System in the Service
Adjustments section in this group of the service man-
ual for the proper bleeding procedure.
(6) Lower the vehicle to the ground.
(7) Road test the vehicle to verify proper operation
of the vehicles brake system.
HYDRAULIC BRAKE TUBES AND HOSES
CAUTION: When installing brake chassis lines or
flex hoses on the vehicle, the correct fasteners
must be used to attach the routing clips or hoses to
the front suspension cradle. The fasteners used toattach components to the front suspension cradle
have an antiÐcorrosion coating due to the suspen-
sion cradle being made of aluminum. Only Mopar
replacement fasteners with the required anti-corro-
sion coating are to be used if a replacement fas-
tener is required when installing a brake chassis
line or flex hose.
Only double wall 4.75mm (3/16 in.) steel tubing
with Al-rich/ZW-AC alloy coating and the correct tube
nuts are to be used for replacement of a hydraulic
brake tube.
NOTE: On vehicles equipped with traction control,
the primary and secondary hydraulic tubes between
the master cylinder and the hydraulic control unit
are 6 mm (15/64 in.). These tubes are also coated
with the Al-rich/ZW-AC alloy and must be replaced
with tubes having the same anti-corrosion coating.
Be sure that the correct tube nuts are used for the
replacement of these hydraulic brake tubes.
Care should be taken when replacing brake tubing,
to be sure the proper bending and flaring tools and
procedures are used, to avoid kinking. Do not route
the tubes against sharp edges, moving components or
into hot areas. All tubes should be properly attached
with recommended retaining clips.
If the primary or secondary brake tube from the
master cylinder to the ABS Hydraulic Control Unit
(HCU) or the brake tubes from the HCU to the pro-
portioing valve require replacement,onlythe origi-
nal factory brake line containing the flexible section
can be used as the replacement part. This is required
due to cradle movement while the vehicle is in
motion.
PARK BRAKE PEDAL MECHANISM
REMOVE
(1) Disconnect negative (ground) cable from the
battery and isolate cable from battery terminal.
(2) Remove sill scuff plate from left door sill.
(3) Remove the left side kick panel.
(4) Remove the steering column cover from the
lower instrument panel.
(5) Remove the reinforcement from the lower
instrument panel.
(6) Lock out front park brake cable using the fol-
lowing procedure. Grasp the exposed section of the
front park brake cable and pull rearward on it. While
holding the park brake in this position, install a pair
of locking pliers on the front park brake cable just
rearward of the second body outrigger bracket (Fig.
137).
(7) Remove the front park brake cable from the
park brake cable equalizer.
Fig. 136 Actuator Attachment To Proportioning
Valve
5 - 58 BRAKESNS
REMOVAL AND INSTALLATION (Continued)
Page 141 of 1938

(8) Remove tension from front park brake cable.
Tension is removed by releasing the locking pliers
from the front park brake cable.
(9) Remove the 3 bolts mounting the wiring junc-
tion block to the instrument panel.
NOTE: When removing the lower mounting bolt,
push the park brake pedal down 5 clicks to access
the lower mounting bolt.
(10) Remove the lower bolt mounting the park
brake pedal to the body.
(11) Remove the forward bolt mounting the park
brake pedal to the body.
(12) Remove the upper bolt mounting the park
brake pedal to the body.
(13) Disconnect the electrical connector for the
brake light switch (Fig. 138).
(14) Pull downward on front park brake cable
while rotating park brake pedal mechanism out from
behind junction block.
(15) Remove park brake pedal release cable (Fig.
138) from park brake mechanism.
(16) Remove the ground switch for the red brake
warning lamp from the park brake pedal mechanism.
(17) Remove front park brake cable button from
park brake pedal mechanism. Tap end housing of
front park brake cable out of park brake pedal mech-
anism (Fig. 138).
INSTALL
(1) Install the ground switch for the red brake
warning lamp on the park brake pedal mechanism
(2) Install park brake cable end housing (Fig. 138)
into park brake pedal mechanism.
(3) Install cable retainer (Fig. 138) onto the park
brake cable strand and then install retainer into
pedal bracket.(4) Install cable strand button into the clevis on
the park brake pedal mechanism.
(5) Install wiring harness connector on red brake
warning lamp ground switch.
(6) Install the park brake release cable on the
release mechanism of the park brake pedal.
(7) Position the park brake pedal mechanism into
its installed position on the body of the vehicle.
(8) Remove the lock-out pin from the park brake
pedal release mechanism.
(9) Loosely install the top bolt (Fig. 138) mounting
the park brake pedal mechanism to the body.
(10) Loosely install the forward bolt (Fig. 138)
mounting the park brake pedal mechanism to the
body.
(11) Loosely install the lower bolt (Fig. 138)
mounting the park brake pedal mechanism to the
body.
(12) Tighten pedal mechanism attaching bolts to
28 N´m (250 in. lbs.).
(13) Verify that the park brake pedal is in the fully
released (full up) position.
(14) Raise vehicle.
(15) Install the front park brake cable on the park
brake cable equalizer.
(16) Lower vehicle.
(17) Remove the lock-out pin (Fig. 138) from the
automatic cable adjuster on the park brake pedal
mechanism.
(18) Install the electrical junction block on the
instrument panel.
(19) Install the reinforcement on the lower instru-
ment panel.
(20) Install the steering column cover on the lower
instrument panel.
(21) Install the left side kick panel.
(22) Install the sill scuff plate on the lower sill of
the left door.
Fig. 137 Locking Out Automatic AdjusterFig. 138 Park Brake Pedal Mounting
NSBRAKES 5 - 59
REMOVAL AND INSTALLATION (Continued)
Page 142 of 1938

(23) Install the negative (ground) cable on the bat-
tery.
(24) Cycle the park brake pedal one time. This will
seat the park brake cables and will allow the auto-
matic self adjuster to properly tension the park brake
cables.
PARK BRAKE SHOES (WITH REAR DISC BRAKES)
On this vehicle, the park brake shoes are removed
from the disc brake adapter with the disc brake
adapter removed from the vehicle.
REMOVE
(1) Set the parking brake.The parking brake is
set to keep the hub/bearing and axle shaft from
rotating when loosening the hub nut.
(2) 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.
(3) Remove the wheel/tire.
(4) Remove the cotter pin and nut retainer (Fig.
139) from the stub shaft of the outer C/V joint.
(5) Remove the spring washer (Fig. 140) from the
stub shaft of the outer C/V joint.
(6) Remove the hub nut and washer (Fig. 141)
from the stub shaft of the outer C/V joint.
(7) Release the parking brake.
(8) Create slack in the rear park brake cables by
locking the out the automatic adjuster as described.
Grasp the exposed section of front park brake cable
and pull downward on it. Then install a pair of lock-
ing pliers on the front park brake cable just rearward
of the second body outrigger bracket (Fig. 142).
(9) Remove the disc brake caliper to adapter guide
pin bolts (Fig. 143).
(10) Remove rear caliper from adapter using the
following procedure. First rotate rear of caliper up
from the adapter. Then pull the front of the caliperand the outboard brake shoe anti-rattle clip out from
under the front abutment on the adapter (Fig. 144).
(11) Support caliper to prevent the weight of the
caliper from damaging the flexible brake hose (Fig.
Fig. 139 Cotter Pin And Nut Retainer
Fig. 140 Spring Washer
Fig. 141 Hub Nut And Washer
Fig. 142 Locking Out Automatic Adjuster
5 - 60 BRAKESNS
REMOVAL AND INSTALLATION (Continued)
Page 143 of 1938

145).(12) Remove the rotor from the hub/bearing.
(13) Remove the horseshoe clip (Fig. 146) from the
retainer on the end of the park brake cable.
(14) Remove the end of the park brake cable from
the actuator lever on the adapter (Fig. 146).
(15) Remove the end of the park brake cable from
the adapter. Park brake cable is removed from
adapter using a 1/2 wrench slipped over the park
brake cable retainer as show in (Fig. 147) to com-
press the locking tabs on the park brake cable
retainer.
(16) Remove the attaching bolt from the wheel
speed sensor (Fig. 148). Then remove wheel speed
sensor from hub/bearing and adapter.
(17) Remove the hub/bearing to axle mounting
bolts (Fig. 149).
(18) Remove the hub/bearing from the axle and the
stub shaft of the outer C/V joint (Fig. 150).
(19) Remove the adapter from the rear axle.
(20) Mount the adapter in a vise using the anchor
boss for the park brake cable (Fig. 151).
Fig. 143 Removing Caliper Guide Pin Bolts
Fig. 144 Removing / Installing Caliper
Fig. 145 Correctly Supported Caliper
Fig. 146 Park Brake Cable Attachment To Actuator
Fig. 147 Park Brake Cable Removal From Adapter
NSBRAKES 5 - 61
REMOVAL AND INSTALLATION (Continued)
Page 144 of 1938
(21) Remove the lower return spring (Fig. 152)
from the leading and trailing park brake shoes.
(22) Remove the hold down spring and pin (Fig.
153) from the leading park brake shoe.
Fig. 148 Speed Sensor Attaching Bolt
Fig. 149 Hub/Bearing Mounting Bolts
Fig. 150 Hub/Bearing Removal And Installation
Fig. 151 Adapter Mounted In Vise
Fig. 152 Lower Return Spring
Fig. 153 Leading Brake Shoe Hold Down Pin And
Spring
5 - 62 BRAKESNS
REMOVAL AND INSTALLATION (Continued)