sequence until all nuts are torqued to half specifica-
tion. Then repeat the tightening sequence to the full
specified torque of 129 N´m (95 ft. lbs.).
(7) Lower vehicle to the ground.
CAUTION: When tightening hub/bearing assembly
to stub shaft retaining nut, do not exceed the max-
imum torque of 244 N´m (180 ft. lbs.).
(8) With vehicle brakes applied to keep vehicle
from moving, torque stub shaft to hub/bearing assem-
bly retaining nut to 244 N´m (180 ft. lbs.).
(9) Check the Toe setting on the vehicle and reset
if not within specifications.
FRONT WHEEL MOUNTING STUDS
REMOVE
CAUTION: If a wheel attaching stud needs to be
replaced in the hub and bearing assembly the studs
CAN NOT be hammered out of the hub flange. If a
stud is removed by hammering it out of the bearing
flange, damage to the hub and bearing assembly
will occur leading to premature bearing failure.
The following procedure and special tools shown
MUST BEused when replacing wheel attaching
studs.
The hub and bearing assembly does not require
removal from the steering knuckle to replace wheel
attaching studs in the hub and bearing assembly.
(1) Raise vehicle on jackstands or centered on a
frame contact type hoist. See Hoisting in the Lubri-
cation and Maintenance section of this manual for
the required lifting procedure to be used for this
vehicle.
(2) Remove the front wheel and tire assembly from
the vehicle.
(3) Remove the front caliper assembly from the
front steering knuckle assembly. (Fig. 62) Refer to
Front Disc Brake Service in the Brake Section of this
service manual for caliper removal procedure.
(4) Remove front rotor from hub, by pulling it
straight off wheel mounting studs. (Fig. 63)
(5) Install a lug nut on the wheel stud to be
removed from the hub and bearing assembly, so the
threads on the stud are even with end of lug nut.
Install Remover, Special Tool C-4150A on hub and
bearing assembly flange and wheel stud (Fig. 64).
(6) Tightening down on special tool will push
wheel stud out of the hub and bearing assembly
flange. When shoulder of wheel stud is past flange
remove special tool from hub and bearing assembly.
Remove lug nut from stud and remove wheel stud
from flange.
INSTALL
(1) Install replacement wheel stud into flange of
hub and bearing assembly. Install washers on wheel
stud, then install a wheel lug nut on stud with flat
side of lug nut against washers (Fig. 65).
(2) Tighten the wheel lug nut, pulling the wheel
stud into the flange of the hub and bearing assembly.
When the head of the stud is fully seated against the
bearing flange, remove lug nut and washers from
wheel stud.
(3) Install the braking disk back on the hub and
bearing assembly. (Fig. 63)
Fig. 62 Disc Brake Caliper Mounting
Fig. 63 Removing Braking Disc
2 - 28 SUSPENSIONNS
REMOVAL AND INSTALLATION (Continued)
The rear suspension used on the front wheel drive
commercial version of this vehicle is unique to this
application. The rear axle is mounted to the rear leaf
springs as on the non-commercial application of this
vehicle but does not use any isolators between the
spring and the axle. The leaf spring used on the com-
mercial version of this vehicle is a multi-leaf spring
but is a unique design for the commercial applica-
tion.
The rear leaf spring shackle angles provide
increasing suspension rates as the vehicle is loaded.
This provides a comfortable unloaded ride and also
ample rear suspension travel when the vehicle is
loaded.
A new type of load-leveling shock is available. The
self leveling shock absorbers are a self-contained
vehicle leveling system and shock absorber combined.
The shock absorbers are mounted at an angle, paral-
lel to the springs and forward at the top. This design
provides greater stability in addition to controlling
ride motion.
The rear wheel bearings used are similar to the
bearings used in the front wheels. The bearings are
permanently sealed and require no maintenance. The
bearing and hub are serviced as an assembly. For
service procedures, refer to Group 5, Brakes.DESCRIPTION AND OPERATION
REAR WHEEL ALIGNMENT
Alignment adjustment is not required. The rear
axle alignment settings are preset at the factory and
therefore no alignment is necessary.
REAR TRACK BAR
On front wheel drive applications of this vehicle
that are equipped with single leaf rear springs a
track bar (Fig. 3) is used on the rear axle.
The track bar connects the rear axle to the frame/
body of the vehicle. The track bar is isolated from the
body of the vehicle by an isloator bushing located in
each end of the track bar.
The track bar (Fig. 3) prevents excessive side to
side movement of the rear axle. The track bar is used
to keep the location of the axle in the correct position
for optimum handling and control of the vehicle.
STABILIZER BAR
The stabilizer bar (Fig. 4) interconnects both sides
of the rear axle and attaches to the rear frame rails
using 2 rubber isolated link arms.
Jounce and rebound movements affecting one
wheel are partially transmitted to the opposite wheel
to reduce body roll.
Fig. 2 All Wheel Drive Rear Suspension
NSSUSPENSION 2 - 39
GENERAL INFORMATION (Continued)
