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2 - 50
REAR SUSPENSION
UPPER CONTROL ARM (Continued)
DISASSEMBLY - UPPER BALL JOINT
The rear upper control arm must be removed from
the vehicle for replacement of the ball joint. (Refer to
2 - SUSPENSION/REAR/UPPER CONTROL ARM -
REMOVAL)
(1) Position Receiving Cup, Special Tool 6758, to
support control arm when removing ball joint assem-
bly (Fig. 37). Install Remover/Installer, Special Tool
6804 on top of ball joint assembly (Fig. 37).
Fig. 37 Removing Ball Joint From Upper Control
1 - SPECIAL TOOL 6804
2 - CONTROL ARM
3 - SPECIAL TOOL 6758
4 - BALL JOINT
(2) Using an arbor press, press the ball joint
assembly out of the control arm.
INSPECTION
Inspect the control arm for physical damage. If it is
determined that the upper control arm is broken or
bent, the upper control arm must be replaced. The
rear suspension upper control arm is not a repairable
component and no attempt is to be made to repair or
to straighten it. The upper control arm must be
replaced if found to be damaged in any way.
Inspect the control arm pivot bushings for deterio-
ration. If found to need replacement, the upper con-
trol arm is to be replaced.
The rear control arm, control arm bushings, and
pivot bar are serviced as a complete assembly on this
vehicle. Do not attempt to disassemble the control
arm from the pivot bar to service the rear control
arm bushings.
The only component on the upper control arm that
is serviceable is the rear upper ball joint and its seal.
Arm
ASSEMBLY - UPPER BALL JOINT
(1) By hand, position ball joint assembly into ball
joint bore of control arm. Be sure ball joint assembly
is not cocked in the bore of the control arm. This will
cause binding of the ball joint assembly when being
pressed into lower control arm.
(2) Position assembly in an arbor press with
Receiving Cup, Special Tool 6758, supporting lower
control arm (Fig. 38). Then install Remover/Installer,
Special Tool 6804, on the top of the ball joint assem-
bly (Fig. 38).
Fig. 38 Installing Ball Joint In Upper Control Arm
1 - SPECIAL TOOL 6804
2 - BALL JOINT
3 - CONTROL ARM
4 - SPECIAL TOOL 6758
CAUTION: When installing the ball joint in the upper
control arm, do not press the ball joint into the con-
trol arm all the way. The lip on the ball joint must
not touch the surface of the control arm. Refer to
Step 3 below when installing the ball joint.
(3) Carefully align all pieces. Using the arbor
press, press the ball joint into the control arm until a
gap of 3 mm (1/8 inch) is between lip on ball joint
and surface of lower control arm.
(4) Reinstall the control arm on the vehicle. (Refer
to 2 - SUSPENSION/REAR/UPPER CONTROL ARM
- INSTALLATION)
JR
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