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REAR SUSPENSION
3D-1
SECTION 3D
REAR SUSPENSION
C A UTI 0 N
:
A 1 1 rear suspension fasteners are an
important attaching part in that they could affect
the performance o f vital parts and systems, and/or
could result in major repair expense. They must be
replaced with one o f the same part number or with
an equivalent part
if
replacement becomes
necessary. Do not use a replacement part o f lesser
quality or substitute design. Torque values must be
used as specified during reassembly to assure
proper retention o f this part.
CONTENTS OF THIS SECTION
General Description
..................................................................................................
3D-1
A, B and G Series
................................................................................................
3D-1
F and X Series
......................................................................................................
3D-2
H Series
.................................................................................................................
3D-2
Shock Absorber
.....................................................................................................
3D-3
Rear Suspension Service Operations
........................................................................
3D-3
Shock Absorbers
-
Removal and Installation
......................................................
3D-3
Upper Control Arms
............................................................................................
3D-3
Torque Arm H-Series
...........................................................................................
3D-4
Track Rod H-Series
..............................................................................................
3D-4
Lower Control Arms
............................................................................................
3D-7
Bushings
................................................................................................................
3D-7
Coil Springs
...........................................................................................................
3D-8
..........................................................................................................
Leaf Springs
3D-8
Axle Housing
........................................................................................................
3D-9
..................................................................................................
Rubber Bumper
3D-9
......................................................................................
Axle Housing Alignment
3D-10
.............................................................................................
Rear Stabilizer Shaft
3D-10
..................................................................................
Superlift Shock Absorbers..
3D- 1 0
.....................................................................................
Automatic Level Control
3D-13
GENERAL DESCRIPTION
A, B AND G SERIES
A four link rear suspension (Fig. 3D-1) is used on all
models. The axle housing is connected to the frame by two
upper and two lower control arms with rubber pivot bushings
at each end of the control arm. The control arms maintain
the geometrical relationships of the rear axle with the frame,
oppose torque reaction on acceleration and braking and
provide for optimum handling characteristics.
Two coil springs support the weight of the car in the rear
suspension. They are retained between seats in the framiand
brackets welded to each axle housing tube. A rubber insulator
is used to isolate the coil spring upper end from the frame
seat and the lower end sits directly on the axle tube mounted
bracket.
Sealed shock absorbers are mounted between a bracket
welded to each axle housing tube and the upper spring seat,
with the top inclined toward the center of the car. The shock
absorbers are externally the same for all models (except for
length), but vary in hydraulic control to provide a well-
controlled but soft ride.
A steel stabilizer shaft is used to improve side roll
stability on models with handling option. The one-piece shaft
attaches to the lower control arms and is positioned directly
under the differential axle housing. The shaft will support the
weight of the car when a two-post axle engaging hoist is used
for lifting.
Rubber bumpers are mounted near the outer ends of the
axle housing and at the center of the frame crossmember to
prevent metal-to-metal contact during compression travel or
bottoming of the suspension.
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