OPERATION
The hub and bearing has internal bearings that
allow it to rotate with the tire and wheel.
UPPER CONTROL ARM (REAR)
DESCRIPTION
An upper control arm is attached to the top of each
rear knuckle, connecting the knuckle to the rear sus-
pension crossmember.
The attachment of the upper control arm to the
knuckle is achieved through a ball joint in the upper
control arm. The upper control arm is bolted to the
rear suspension crossmember using a pivot bar which
is rubber isolated from the upper control arm.
OPERATION
The upper control arm supports the upper end of
the knuckle and allows for the up and down move-
ment of the suspension under jounce and rebound
travel.
LATERAL LINKS
DESCRIPTION
The lateral links connect the lower front and rear
of the knuckle to the rear crossmember. They have
rubber isolator bushings at each end to isolate sus-
pension noise from the body of the vehicle. The for-
ward link allows for stabilizer bar attachment
through stabilizer bar attachment links.
OPERATION
The lateral movement of the rear knuckle is con-
trolled by the lateral links connecting the front and
rear of the knuckle to the rear suspension crossmem-
ber. The metal sleeves of the links are adjustable for
setting rear wheel alignment.
TRAILING LINK
DESCRIPTION
The trailing link on each side of the vehicle bolts to
the bottom of the knuckle and to a bracket attached
to the floor pan of the vehicle. The trailing link is
steel and has rubber isolator bushings, retainer
washers and nuts at each end to isolate suspension
noise from the body of the vehicle.
OPERATION
Fore and aft movement of the knuckle is controlled
by a trailing link.
STABILIZER BAR (REAR)
DESCRIPTION
The stabilizer bar interconnects the forward lateral
links of the vehicle’s rear suspension and is attached
to the rear suspension crossmember of the vehicle.
Attachment of the stabilizer bar to the rear cross-
member of the vehicle is through 2 rubber-isolator
bushings and bushing retainers. The stabilizer bar to
lateral link attachment is done utilizing a rubber iso-
lated stabilizer bar attaching link. All parts of the
stabilizer bar are serviceable, and the stabilizer bar
to rear suspension isolator bushings are split for easy
removal and installation. The split in the stabilizer
bar to crossmember bushing must be positioned
toward the front of the vehicle, when the stabilizer
bar is installed on the vehicle.
OPERATION
Jounce and rebound movements affecting one rear
wheel of the vehicle are partially transmitted to the
opposite wheel of the vehicle through the stabilizer
bar to stabilize body roll.
DIAGNOSIS AND TESTING
SHOCK ASSEMBLY (REAR)
(1) Inspect for damaged or broken coil springs.
(2) Inspect for torn or damaged shock absorber
dust shield.
(3) Inspect for damaged lower spring isolator.
(4) Lift dust boot and inspect shock absorber for
evidence of fluid running from the upper end of fluid
reservoir. (Actual leakage will be a stream of fluid
running down the side and dripping off lower end of
unit). A slight amount of seepage between the shock
absorber rod and shock absorber rod seal is not
unusual and does not affect performance of the shock
absorber. Also inspect jounce bumpers for signs of
damage or deterioration.
KNUCKLE (REAR)
Inspect the knuckle for physical damage. If it is
determined that the knuckle is cracked, bent or bro-
ken when servicing the vehicle, no attempt is to be
made to repair or to straighten the knuckle. The rear
knuckle is not a repairable component of the rear
suspension and must be replaced if found to be dam-
aged in any way.
HUB AND BEARING (REAR)
The rear hub and bearing assembly is designed for
the life of the vehicle and should require no mainte-
nance. The following procedure may be used for eval-
uation of bearing condition.
JX
SUSPENSION
2 - 49
DESCRIPTION AND OPERATION (Continued)