
FRONT SUSPENSION 3-11
Chevy II (Fig. 14)
Removal
1.
While vehicle weight is still on front wheels, position
support between upper control arm and frame side
rail (fig. 15).
NOTE: Bight side control arm support bracket
is illustrated in Figure 15. For left side, angled
support should be welded to reverse side of
plate.
2.
Raise vehicle and remove wheel and tire.
3.
Disconnect lower shock absorber mounting nuts, lock
washers and rubber washers from lower spring seat.
4.
Remove shock absorber upper mounting bracket
bolts.
Lift bracket and shock absorber assembly
from vehicle (fig. 16).
5.
Remove shock absorber from upper mounting bracket
and remove rubber bushings and washers.
Installation
1.
Assemble upper washer and rubber bushing to shock
absorber rod (refer to Figure 14).
2.
Assemble upper mounting bracket, bushing, washer
and nut to rod. Torque according to Specifications at
the end of this book.
3.
Install rubber washers to shock absorber lower seat
studs and insert shock absorber and upper bracket
assembly into shock absorber access hole, and posi-
tion to the lower spring seat. Install washers, nuts
and torque according to Specifications at the end of
this book.
NOTE: Shock absorber seat upper washers
must correctly pilot into spring seat.
4.
Install upper mounting bracket to spring tower and
torque nuts according to Specifications at the end of
this book.
STABILIZER BAR (FIG. 17)
Removal
1.
Raise vehicle and support both front wheels.
2.
Disconnect stabilizer bar from lower control arm.
Remove stabilizer bar brackets from the frame
(Chevrolet, Chevelle, Camaro and Corvette) or from
the front crossmember (Chevy n) and remove
stabilizer.
Fig.
16 - Removing Shock Absorber and Bracket - Chevy II
3.
Disconnect stabilizer link bolts, spacers and rubber
bushings from lower control arms.
4.
Inspect rubber stabilizer link bushings and Stabilizer
insulator bushings for aging. Replace if necessary.
Installation
1.
If new insulators
are necessary, coat stabilizer with
recommended rubber lubricant and slide frame bush-
ings into position.
2.
Insert stabilizer brackets over bushings and connect
to frame. Do not torque at this point. Connect sta-
bilizer ends to link bolts on lower control arms.
Torque bracket bolts and link nuts as shown in the
Specifications.
NOTE: Never get lubricant on outside of frame
stabilizer bar bushings or they may slip out of
brackets.
STRUT ROD (FIG. 18)
Chevrolet and Chevy II
Removal
1.
Raise vehicle to
clearance.
provide sufficient working
TYPICAL OF
CHEVROLET, CHEVELLE AND CAMARO
BRACKET LINK BOLT
CORVETTE
CHEVY H
Fig.
17- Stabilizer Bar
CHEVROLET CHASSIS SERVICE MANUAL

FRONT SUSPENSION 3-12
2.
Remove forward nut, retainer and rubber bushing
from front end of strut rod.
3.
Remove two nuts from strut rod to lower control arm
bolts and remove bolts and washers.
4.
Withdraw strut rod from bracket.
5. Remove remaining rubber bushing, retainer, sleeve
and nut from strut rod.
6. Inspect rubber bushings for aging and replace if
necessary. *•
Installation
1.
Screw rear nu$ on forward end of rod and position it
approximately 3/4" from end of threads. Install
rear retainer, sleeve and bushing on rod so raised
pilot diameter faces forward.
2.
Insert strut rod in bracket so pilot diameter on bush-
ing pilots in hole in bracket. Install forward bushing
on sleeve so raised pilot diameter faces rear to
enter hole in bracket, then install forward retainer
and nut on rod.
3.
Attach strut rod to top of lower control arm with two
bolts,
washers and nuts.
4.
Lower vehicle to floor, check caster and camber
angles and adjust where necessary. Torque nuts as
shown in Specifications.
FRONT SPRING
Chevrolet
Removal
1.
With an open end wrench hold the shock absorber
upper stem from turning, and then remove the upper
stem retaining nut, retainer and rubber grommet.
I IVi" rVi"i
\>. j ii
>
I
5'4
s
WOOD
BLOCK
USED
WITH
CHEVROLET
ONLY
Fig.
19
- Spring Removal Tools - Chevrolet, Chevelle and Comoro
2.
With the car supported by the frame so that the con-
trol arms hang free, remove the wheel and tire as-
sembly (replace one wheel nut to retain the brake
drum),
shock absorber, stabilizer bar to lower con-
trol arm link, strut rod to lower control arm attach-
ing, nuts, bolts and lock washers and tie rod end.
3.
Scribe the position of the inner pivot camber adjust-
ing cam bolt and then remove the nut, lock washer
and outer cam.
4.
Install a steel bar (fabricated as shown in Figure 19)
through the shock abosrber mounting hole in the
lower control arm so that the notch seats over the
bottom spring coil and the bar extends inboard and
under the inner bushing. Fit a 5" wood block (See
Figure 19) between the bar and the bushing as shown
in Figure 20.
5.
With suitable jack or hoist, lift up slightly on the end
of the bar to remove the tension from the inner pivot
cam bolt, which can then be removed.
Fig.
18-Strut Rod
Pig. 20 - Front Spring Removal - Chevrolet
CHEVROLET CHASSIS SERVICE MANUAL

FRONT SUSPENSION ,3-13
6. Carefully lower the inner end of the control arm.
Tension on the spring will be removed before the
spring can be removed from the vehicle.
7.
Remove the spring.
Installation
1.
With the suspension set up as in Step 2 of the disas-
sembly procedure, insert a block of wood between the
upper control arm and the spring tower to keep the
arm up out of the way.
2.
Set the spring in place on the crossmember after
checking on proper positioning necessary.
3.
Install the steel bar and wood block as shown in Fig-
ure 20 and lift the control arm up until the inner
pivot cam bolt can be installed. ,
4.
Install the outer cam and loosely install the lock
washer and nut
5.
Set the cam bolt on the mark scribed during the re-
moval procedure and hold in this position while tight-
ening the nut (See specifications at the end of this
book).
6. Replace the strut rod to lower control arm nuts,
bolts and lock washers, the stabilizer bar link, the
shock absorber, the tie rod end, and the wheel and
tire.
7.
Lower vehicle to floor and install the shock absorber
upper stem retaining nut retainer and grommet.
8. Check the camber adjustment.
Chevelle and Camaro
Removal
1.
With an open end wrench hold the shock absorber up-
per stem from turning, and then, remove the upper
stem retaining nut, retainer and rubber grommet.
2.
With the car supported by the frame so that the con-
trol arms hang free, remove the wheel and tire as-
sembly (replace one wheel nut to retain the brake
drum),
shock absorber, and stabilizer bar to lower
control arm link.
4.
5.
Fig.
21 - Front Spring Removal - Chevelle & Camaro
Place a steel bar (fabricated as shown in Figure 19)
through the shock absorber mounting hole in the
lower control arm so that the notch seats over the
bottom spring coil and the bar extends outboard be-
yond the end of the control arm and slightly toward
the front of the car.
With a suitable jack or hoist lift up slightly on the
end of the bar.
Remove the lower ball stud cotter pin and attaching
nut and remove the ball stud from the knuckle.
ALTERNATE METHOD
Fig.
22 - Removing or Installing Front Coil Spring - Corvette (Typical)
CHEVROLET CHASSIS SERVICE MANUAL

FRONT SUSPENSION 3-14
Fig.
23 - Installing Spring Compressor - Chevy II
CAUTION: Use extreme care not to damage
the seal during this operation.
6. Lower control arm as shown in Figure 21, until
spring can be removed.
Installation
1.
Properly position the spring on the arm and with the
steel bar in place, as shown in.Figure 21, lift the
arm up until the ball stud may be installed in the
knuckle. Install the nut and cotter pin.
NOTE:
^A block of wood between the upper con-
trol' arm and the frame will simplify this
operation.
2.
Replace the stabilizer bar link, shock absorber and
wheel and tire.
3.
Lower vehicle to floor and install the shock absorber
upper stem retaining nut, retainer and grommet.
Fig.
25 - Removing Spring and Seal Assembly - Chevy 11
ChevyiI
Removal
1.
Raise vehicle and remove wheel and tire.
2.
Support lower control arm with adjustable jackstand
and raise slightly from full rebound position.
3.
Remove shock absorber as outlined under Shock
Absorber -- Removal in this section (delete Step 1).
Fig.
24 - Compressing Front Spring - Chevy
Fig.
26 - Spring Seat - Exploded View - Chevy II
CHEVROLET CHASSIS SERVICE MANUAL

FRONT SUSPENSION 3-15
4.
Insert Spring Compressor J-
6874-
4-
5 with Adapters
J-6874-8-9 into upp^r spring tower so that lower
MU"
bolt fits into shock absorber mounting holes in
spring seat (fig. 23). Secure the two lower studs to
the spring seat with nuts.
5.
Fit the tool upper pilot to top of spring and compress
spring by tightening upper nut (fig. 24). Compress
spring until screw is bottomed out.
6. Remove lower spring seat retaining nuts, lift spring
and seat assembly from control arm and guide it
down and out through fender skirt (fig. 25).
Spring Seat Replacement (Fig. 26)
1.
Release spring tension and disconnect spring com-
pressor from spring seat.
2.
Install new spring seat to spring compressor.
Installation
1.
If spring is to be replaced, install new spring into
tool and compress spring until screw is bottomed
out.
NOTE: Spring coil ends must be against spring
stops in upper and lower seats.
2.
Lift spring and tool assembly into place and position
so that the upper spring stop is inboard.
NOTE: Locating tab on upper spring seat may
be flattened before reinstalling spring.
3.
Install lower spring seat to control arm and torque
nuts as shown in the Specifications.
4.
Loosen spring compressor until spring is properly
seated in upper spring tower and remove.
5.
Install shock abosrber as outlined under Shock Ab-
sorber—Installation in this section.
Corvette
Removal
1.
With car on suitable hoist or jack, (support vehicle
by frame so control arms may swing free) remove
wheel and tire assembly, stabilizer bar and shock
absorber. Loosen the lower ball joint to steering
knuckle nut, and the' two lower control arm cross
shaft bushing bolts.
2.
Place Tool J-6874-1 across top of sixth coil (ap-
prox.),
then loosely secure Tool J-6874-2 to the up-
per shoe, with attaching capscrews and lock washers.
The upper shoe "V" notch and lower shoe raised land
should contact spring.
3.
Insert Tool J-6874 up through center of spring and
attach to upper and lower shoe assembly.
4.
Position spacers under shock absorber mounting hole
and against bottom of lower control arm. Install
special bearing washer and Tool J-6874-5. Locate
bearing against spacer and large washer against
bearing. Feed screw up through large washer bear-
ing and spacer and thread into Tool J-6874 and
tighten snugly (fig. 22).
5.
Center shoe assembly on spring and tighten screw
until a very slight compression is placed on spring
(fig. '22). Then firmly tighten down the two cap-
screws securing the upper and lower shoes to lock
these shoes to spring.
6. Turn head of screw until spring is compressed just
enough to clear the spring tower, then remove the
lower ball joint to steering knuckle nut (fig. 22).
NOTE: It may be necessary to assist the
spring out of the spring tower with a pry bar or
a similar tool.
7.
Disconnect the lower ball joint from the steering
knuckle and lower the control arm with the com-
pressed spring. Immediately release compression
on spring by backing off long screw. Release spring
and tool and withdraw spring.
CAUTION: The spring force under compres-
sion is very large. Exercise every safety pre-
caution when performing this operation to see
that individuals and materials subject to damage
are removed from the path of the spring when
the control arm is being lowered. Also, the
compressed spring
be relaxed immedi-
ately after lowering the control arm to reduce
the time of exposure to the large compressive
force.
Installation
1.
Position spring with closely coiled end up. Place
Tool J-6874-1 across the top of the sixth coil (ap-
prox.) then loosely secure Tool J-6874-2 to the
upper shoe with attaching capscrews and lock wash-
ers.
The upper shoe MV" notch and lower shoe
raised land should contact spring.
2.
Insert Tool J-6874 up through center of spring and
attach to upper and lower shoe assembly with bolt
and nut.
3.
Set spring in its seat on the lower control arm.
4.
Position spacers centrally under shock absorber
mounting hole and against bottom of lower control
arm. Install bearing, large washer and Tool
J-6874-5.
Locate bearing against spacer and large
washer against bearing. Feed the screw up through
large washer, bearing and spacer and thread into
yoke rod. Tighten snugly, but do not start to draw
down yet
5.
Center the shoe assembly on the spring and tighten
the lag screw until a very slight compression is
placed on spring, then firmly tighten down the two
capscrews securing the upper and lower shoes. This
will lock the shoes to the coil spring.
6. Turn head of screw until spring is compressed just
enough to clear the spring tower.
NOTE: It may be necessary to assist the
spring into the spring tower with a pry bar or
similar tool.
7.
Immediately install the lower ball joint into steering
knuckle and secure in place with attaching nut.
8. Release compression on spring and at the same time
use a drift to guide the coil spring into its proper
seat. End of coils must be 3/8" from coil stops in
spring seat.
9. Tighten the lower ball joint to steering knuckle nut
and lock with cotter key.
10.
Install shock absorber and stabilizer bar.
11.
Install wheel, tire and drum assembly.
12.
Remove car from hoist or jack stands.
13.
Tighten the two lower control cross shaft bushing
bolts to 45-55 lbs. ft. torque.
NOTE: If a suitable adjustable jack-stand is
CHEVROLET CHASSIS SERVICE MANUAL

FRONT SUSPENSION 3-16
available the following procedure may also be
used (fig. 22-Alternate Method).
1.
Support car on suitable hoist or jack (so control
arms may swing free) and remove the wheel and
tire assembly, shock absorber, and stabilizer link
at control arm.
2.
Place suitable jack stand under the lower control
arm cross shaft.
3.
Follow Steps 2-5 as outlined on previous page.
4.
Turn head of tool screw to partially compress
spring.
5. Remove the three control arm cross shaft attaching
bolts,
washers and nuts.
6. Carefully lower jack stand and if necessary increase
compression on spring and when coil spring is out of
its upper seat, relax tension on spring (fig. 22).
7. By using a pry bar to assist, if necessary, remove
the coil spring from the lower control arm.
8. Installation is the reverse of the above procedure.
Carefully follow instructions for installing spring
tool.
LOWER CONTROL ARM SPHERICAL JOINT
Chevrolet, Chevelle, Comoro and Corvette
Inspection
The lower control arm spherical joint should be re-
placed whenever wear is indicated in the upper joint
inspection.
NOTE: The lower control arm spherical joint
is a loose fit in the assembly when not connected
to the steering knuckle.
Only if inspection of each upper joint indicates them
both to be within limits, inspect each lower joint for ex-
cessive wear as follows:
1.
After reconnecting upper joints to steering knuckles,
support vehicle weight on wheels or wheel hubs.
2.
With outside micrometer or caliper, measure dis-
tance from top of lubrication fitting to bottom of ball
stud, and record the dimensions for each side.
3.
Then support vehicle weight at outer end of each
lower control arm, so that wheels or wheel hubs are
free,
then repeat Step 2.
4.
If the difference in dimensions on either side is
greater than 1/16" (.0625"), the joint is excessively
worn and both lower joints should be replaced.
If inspection of lower spherical joints does not indicate
excessive wear, inspect further as follows:
5.
On Chevrolet Only--Examine lubrication hole in each
joint assembly after cleaning out hole. Look for evi-
dence of the liner partially or fully blocking lubrica-
tion opening. Such evidence indicates that liner is
disintegrating and that both lower spherical joints
should be replaced.
Another indication of lower spherical joint excessive
wear is indicated when difficulty is experienced when
lubricating the joint. If the liner has worn to the point
where the lubrication grooves in the liner have worn
away, then abnormal pressure is required to force lubri-
cant through the joint. This is another reason to recom-
mend replacement of both lower joints.
If the above inspections do not indicate any reason for
spherical joint replacements, test the torque tightness of
Fig. 27 - Removing Lower Ball Joint - Chevelle
&
Camaro
the lower ball stud in the knuckle on each side as follows:
1.
Wire-brush off nut and cotter pin attaching spherical
joint ball stud to steering knuckle and examine for
evidence of looseness of stud in knuckle.
2.
If no evidence of looseness, remove cotter pin and
with prick punch or equivalent, mark nut stud and
knuckle to identify relative location.
3.
Tighten nut as installed and observe torque reading.
If less than 45 lbs. ft., stud may have been loose in
steering knuckle and replacement of both lower
spherical joints may be recommended.
4.
Check to see if torque of 60-94 lbs. ft. can be ob-
tained without bottoming stud or ball joint against
knuckle. If bottoming occurs, replace ball joint or
steering knuckle.
Chevrolet and Corvette
Removal
1.
Support lower control arm at outer end on floor jack,
with hoist or jack pad clear of lower ball stud nut.
2.
Remove upper and lower ball stud nuts, free ball
studs from steering knuckle and wire knuckle and
brake drum assembly up to fender skirt to preclude
interference while performing next step.
3.
Being careful not to enlarge the holes in control arm,
cut off rivets.
Installation
1.
Install new joint against underside of control arm and
CHEVROLET CHASSIS SERVICE MANUAL

FRONT SUSPENSION
3-22
CHEVROLET
s-L 1 \
TYPICAL
OF
-^-x ^K CORVETTE, CHEVELLE AND CAMARO
CHEVY n
Rg.
37 - Upper Control Arm Attachment
NOTE:
Additional support to upper control
arm may be necessary while chiseling.
7. Clean ball joint seat in arm and inspect for cracking
or other evidence of fatigue. If cracks are present at
the rivet holes or ball joint opening, replace arm as
outlined later in this section.
8. Attach replacement ball joint assembly to the control
arm, using special bolts furnished with replacement
kit.
NOTE:
Use only special hardened bolts fur-
nished with this replacement kit. Do not attempt
to use other non-hardened bolts and do not at-
tempt to rivet replacement ball joint to arm.
9. Raise lower control arm and steering knuckle as-
sembly into position, insert upper ball stud into up-
per steering knuckle and install stud nut. Torque
nut as shown in the specifications and insert new
cotter pin. Install stabilizer and strut rod.
10.
Lubricate ball joint, install wheel and tire and re-
move adjustable jackstand.
11.
Lower vehicle and remove upper control arm spacer.
12.
Check and readjust caster and camber angles where
necessary.
LUBE FITTINGS
Special self threading type lube fittings are used in the
spherical joint assemblies. If it is necessary to replace
a fitting a standard threaded type may be used. However,
replacement spherical joint assemblies are supplied less
the lube fitting. Therefore it will be necessary to install
a self threading type fitting into the untapped hole pro-
vided when replacing the entire assembly.
UPPER CONTROL ARM
Chevrolet, Chevelle, Camaro and Corvette
(Fig.
37)
Removal
1.
Support vehicle weight at outer end of lower control
arm.
2.
Remove wheel and tire assembly.
3.
Remove cotter pin and nut from upper control arm
ball stud. ,
4.
REMOVE The stud from knuckle.
5. Remove two nuts retaining upper control arm shaft to
front crossmember. (Chevelle, Camaro and Cor-
vette—Note number of shims at each bolt.)
6. Remove the bolts attaching the control arm to the
frame to allow proper clearance for control arm
removal if necessary.
7. Remove upper control arm from vehicle.
Installation
1.
Install upper control arm in vehicle.
2.
Install nuts, bolts and lock washers retaining upper
control arm shaft to frame. (Chevelle, Camaro and
Corvette—Install same number of shims as removed
at each bolt.)
3.
Torque nuts as shown in the Specifications at the end
of this book.
4.
Install ball stud through knuckle, install nut, tighten
and install cotter pin.
5. Install wheel and tire assembly.
6. Lower vehicle to floor.
7. Bounce front end of vehicle to centralize bushings
and tighten bushing collar bolts as shown in the
Specifications.
Chevy II (Fig. 37)
Removal
1.
Remove spring and shock absorber as outlined above.
2.
Position adjustable jackstand under lower control
arm.
3.
Remove cotter pin and nut from upper ball joint stud
and strike steering knuckle boss to loosen stud.
4.
Drop lower control arm and steering knuckle
assembly.
CHEVROLET CHASSIS SERVICE MANUAL

FRONT SUSPENSION 3-23
CHEVROLET
J-7052-2
CAMARO
& CHEVELLE
J-21482
CHEVROLET
J-7052-2
CAMARO
& CHEVELLE
J-21482
Fig.
38 - Removal and Installation of Upper Control Arm Bushings - Chevrolet and Chevelle (Chevelle shown as typical)
5.
Remove upper control arm pivot shaft stud nuts from
fender skirt and remove upper control arm.
6. Inspect upper control arm for cracks or bending and
replace if necessary.
Installation
1.
Insert upper control arm pivot shaft studs into rein-
forced fender skirt openings, install lock washers
and nuts and torque as indicated in the specifications.
Raise lower control arm and steering knuckle as-
sembly into position, insert upper ball joint stud into
steering knuckle and install ball stud nut and insert
new cotter pin.
Install spring and shock absorber as outlined earlier
in this section.
Lubricate ball joint and lower vehicle. Check caster
and camber angles and adjust where necessary.
UPPER CONTROL ARM
CROSS SHAFT AND/OR BUSHINGS
Chevrolet, Chevelle and Camaro
Removal
1.
Remove cap screws, lock washers and collars from
2.
3.
4.
both ends of cross shaft.
2.
Install a 3/8-24 cap screw in one end of cross shaft,
3.
Support control arm in an arbor press on Tool
J-5888-3 as shown in Figure 38.
NOTE: Be certain flange of bushing does not
contact support.
4.
Press out bushing, invert control arm and repeat
process on other bushing. Discard bushings.
5.
Remove cap screw from cross shaft.
NOTE: If bushing rubber is deteriorated to the
extent that the bushing sleeve cannot be pushed
out, release the press, install J-9502-3 as shown
in Figure 38 and press out the sleeve.
Installation
1.
Install arm in arbor press with Tool J-7052-2
(Chevrolet) or J-21482 (Chevelle and Camaro) in
place and press in one bushing using J-7052-5 as
shown while supported on Tool j-5888-3 as shown in
Figure 38.
2.
Install cross shaft in arm, invert in press, and press
in second bushing as above.
3.
Cross shaft should be able to be turned by hand.
CHEVROLET CHASSIS SERVICE MANUAL