Buick LeSabre 1965 Service Manual page 458

CHASSIS SUSPENSION
SERVICE PROCEDURES 7 - 3 1
Figure 7-32—Track Bar - Axle
Attachment - 49000
Inspection
1. If track bar is bent it should
be replaced. No attempt should
be made to straighten it.
2. Check rubber bushings for evi-
dence of deterioration, tears, etc.
Examine center steel sleeve for
excessive wear or separation
from rubber.
Removal and Replacement
1. Press out old bushing from
side which has no flange using a
ram 1 7/8" O.D. Considerable
force may be required to remove
the bushing.
2. Install new bushing in track
bar eye by pressing on flanged
side of bushing. Press in bushing
until flange is in contact with eye
of track bar.
Figure 7-33—Track Bar - Frame
Attachment - 49000
Installation
NOTE: Track bar to bracket bolts
must not be tightened unless car
is at normal trim height.
1. Install pivot bolt and nut at-
taching track bar to track bar
bracket on left side of car. Do
not tighten.
2. Install pivot bolt and nut at-
taching track bar to bracket on
axle housing. Torque nut to 120
ft. lbs.
3. Torque track bar nut on left
side of car to 120 ft. lbs.
7 - 1 7 SHOCK ABSORBER
SERVICE AND
REPLACEMENT
a. Checking Shock Absorbers
Both front and rear shock ab-
sorbers are filled and sealed in
production and cannot be refilled
in service.
b. Removal and Installation of
Front Shock Absorber
1. Remove upper mounting stem
nut, grommet retainer and grom-
met. A 1/4" flat on shock stem
may be used to hold stem while
removing nut.
2. On 49000 remove two lower
mounting bracket to lower control
arm bolts. On 45, 46, 48000, re-
move retaining bolt, stop, and nut.
Lower shock through lower con-
trol arm.
3. Make certain the shock ab-
sorber being installed is correct
for car model as indicated by
part number stamped on outer
tube. See Master Parts List,
Group 7.345.
4. Assemble lower grommet re-
tainer and grommet on shock
stem. Extend shock and install
through lower control arm.
5. On 49000 install two shock
bracket to lower control arm
bolts and lock washers. Tighten
to 20 ft. lbs. On 45, 46, 48000,
install stop, bolt and nut. Torque
to 35 ft. lbs.
6. Assemble top grommet, grom-
met retainer, and nut on stem.
Torque to 7 ft. lbs.
c. Removal and Installation of
Rear Shock Absorber
1. Raise rear of car.
2. On 49000, remove lower shock
absorber mounting eye bolt and
nut. On 45, 46, 48000, remove
nut and washer from stud.
3. On 490Q0, remove upper shock
absorber mounting nut, washer
and bushing. On 45, 46, 48000
remove (2) retaining bolts and
nuts. Remove shock absorber.
4. Inspect all rubber bushings and
grommets and replace if not in
good condition. If shock absorber
operation is faulty, it must be
replaced as it cannot be repaired.
5. Make certain the new shock
absorber is correct for car model
as indicated by part number
stamped on the outer tube. See
Master Parts List, Group 7.345
for standard and optional parts.
6. On 49000, assemble bushing in
upper shock eye. Place shock
with bushing over stud in frame,
install flat w a s h e r and nut.
Torque nut to 40 ft. lbs. On 45,
46, 48000, attach upper shock
bracket with 2 nuts and bolts.
Torque evenly to 15-20 ft. lbs.
7. Lower rear end of car. Then
tighten pivot bolt to a minimum
of 35 ft. lbs. on 49000 and 45 ft.
lbs. on 45, 46, 48000.
NOTE: Car weight must be on
rear wheels when tightening shock
absorber lower ends to clamp
rubber bushings in a neutral
position.
Shock absorber calibrations as
furnished in production have been