ECU CHEVROLET CAMARO 1967 1.G Chassis Workshop Manual

GENERAL INFORMATION 0-7

a vise using leather or wood on each side to prevent

damage to the cylinder,

7. Stake the retainer securely in place by staking the

cylinder metal over both edges of the retainer ends

using a suitable staking tool at right angles to the

top of the retainer and from the cast metal of the

cylinder over the retainer at each corner.

PUSHING, TOWING AND LIFTING

Pushing

NOTE:
Towing car to start is not recommended

due to the possibility of the disabled car ac-

celerating into tow car.

AUTOMATIC TRANSMISSION

Do not attempt to start the engine by pushing the car.

Should the battery become discharged, it will be neces-

sary to use an auxiliary battery with jumper cables to

start the engine.

CAUTION: To prevent damage to electrical

system, never connect booster batteries in ex-
cess of 12 volts and connect positive to positive

and negative to negative.

Manual Transmission

When a push start is necessary turn off all electrical

loads such as heater, radio, and if possible, lights, turn

on the key, depress the clutch, and place the shift lever

in high gear. Release the clutch when your speed reaches

10 to 15 miles per hour.

TOWING

The car may be towed safely on its rear wheels with

the (selector lever in "N" (Neutral) position at speeds

of 35 miles per hour or less under most conditions.

However, the drive shaft must be disconnected or the

car towed on its front wheels if 1) Tow speeds in excess

of 35 MPH are necessary, 2) Car must be towed for ex-

tended distances (over 50 miles) or, 3) Transmission is

not operating properly. If car is towed on its front

wheels, the steering wheel should be secured to maintain

a straight ahead position.

DRIVE ON HOIST

BUMPER JACK LIFTING AT FRAME ATTACHMENT ONLY

FLOOR JACK OR HOIST LIFT

Fig.
21-Vehicle Lifting Pointe-Chevroiet

CHEVROLET CHASSIS SERVICE MANUAL

HEATER AND AIR CONDITIONING 1A-43

LOW PRESSURE

CONTROL
HIGH PRESSURE

CONTROL

3

VACUUM

CONTROL
4

FREON

CONTROL

Fig,
56—Charging Station Controls

3.
When the pressure is reduced to below 100 pounds

on the high pressure gauge, open the low pressure

gauge valve and continue discharging until all re-

frigerant has been released. Close both gauge valves.

EVACUATING AND CHARGING THE SYSTEM

GENERAL NOTE: La all evacuating procedures

shown below, the specification of 26-28 inches

of Mercury vacuum is used. These figures are

only attainable at or near Sea Level Elevation.

For each 1000 feet above sea level where this

operation is being performed, the specifications

should be lowered by 1 inch. Example: at 5000

ft. elevation, only 21 to 23 inches of vacuum can

normally be obtained.

Whenever the air conditioning system is open for any

reason, it should not be put into operation again until it

has been evacuated to remove air and moisture which

may have entered the system.

The following procedures are based on the use of the

J-8393 Charging Station.

Filling Charging Cylinder

1.
Open control valve on refrigerant drum.

2.
Open valve on bottom of charging cylinder allowing

refrigerant to enter cylinder.

3.
Bleed cylinder valve on top (behind control panel) as

required to allow refrigerant to enter. When re-

frigerant reaches desired level (see "Air Condition-

ing System Capacities"), close valve at bottom of

cylinder and be certain bleed valve is closed

securely.

NOTE: It will be necessary to close bleed valve

periodically to allow boiling to subside to check

level in sight glass.

Installing Charging Station to System

1.
Be certain all valves on charging station are closed.

2.
Connect high pressure gauge line to high pressure

gauge fitting. (See "Installing Gauge Set to Check

System Operations.")
3.
See Figure 56. Turn high pressure control (2) one

turn counter-clockwise (open). Crack open low pres-

sure control (1) and allow refrigerant gas to hiss

from low pressure gauge line for three seconds,

then connect low pressure gauge line to low pressure

gauge fitting.

4.
System is now ready for performance testing.

Evacuating and Charging System

1.
Install charging station as previously described.

Refer to Figure 56 and 57 while performing the

following operation.

2.
Remove Low Pressure gauge line from compressor.

3.
Crack open high (2) and low (1) pressure control

valves, and allow refrigerant gas to purge from

system. Purge slow enough so that oil does not

escape from system along with Refrigerant.

4.
When refrigerant flow stops, connect Low Pressure

gauge line to compressor.

5.
Turn on vacuum pump and open Vacuum Control

Valve (3).

6. With system purged as above, run pump until 28-29

inched of vacuum is obtained. Continue to run pump

for 15 minutes after the system reaches 28-29 inches

vacuum.

7.
If 28-29 inches cannot be obtained, close Vacuum

Control Valve (3) and shut off vacuum pump. Open

Refrigerant Control Valve (4) and allow 1/2 pound of

R-12 to enter system. Locate and repair all leaks.

8. After evacuating for 15 minutes, add 1/2 pound of

R-12 to system as described in Step 7 above. Purge

this 1/2 pound and reevacuate for 5 minutes. This

second evacuation is to be certain that as much con-

tamination is removed from the system as possible.

9. Only after evacuating as above, system is ready for

charging. Note reading on sight glass of charging

cylinder. If it does not contain a sufficient amount

for a full charge, fill to the proper leveL

10.
With High and Low pressure Valves (1 and 2) open,

close Vacuum Control Valve (3) and open Freon

Control Valve (4). Operating the heater and air

conditioner blower with the controls set for cooling

will help complete the charging operation.

NOTE: If the charge will not transfer com-

pletely from the station to the system, close

the high pressure valve at the gauge set, set

the air conditioning controls for cooling, check

that the engine compartment is clear of ob-

structions, and start the engine. Compressor

operation will decrease the low side pressure

in the system.

System is now charged and should be performance

tested before removing gauges.

CHECKING OIL

In the six cylinder compressor it is not recommended

that the oil be checked as a matter of course. Gener-

ally, compressor oil level should be checked only where

there is evidence of a major loss of system oil such as

might be caused by:

• A broken refrigerant hose.

• A severe hose fitting leak.

CHEVROLET CHASSIS SERVICE MANUAL

CORVETTE BODY 1B-15

Fig.
32—Removing Regulator

GLASS RUN CHANNEL-REAR

Removal

For parts identification refer to Figure 41.

1.
Remove door trim assembly as outlined in this

section.

2.
Remove window glass assembly as outlined in this

section.

3.
Remove 2 channel retaining screws and pass chan-

nels out through large opening in door inner panel

(fig. 42).

Fig.
33—Removing Ventilator Assembly 19437
Installation

1.
Position run channel in door and install bolts loosely.

2.
Install window glass as outlined in this section.

3.
Make necessary adjustments to channel as outlined

under Doors - Adjustments - Door Windows.

4.
Replace door window and door trim panel.

WINDOW REGULATOR-MANUAL

For parts identification see Figure 41.

Removal

1.
Remove trim panel as outlined in this section.

2.
Remove door window glass as outlined in this

section.

3.
Remove screws retaining regulator assembly to

door panel.

4.
Remove screws holding lower guide rail to door

panel.

5. Remove regulator assembly from large access open-

ing as shown in Figure 43.

Installation

Regulator may be installed by following removal pro-

cedure in reverse order. Always lubricate all guide rails

and rollers when regulator is disassembled. Test regula-

tor thoroughly before installing door trim panel. Adjust

window as outlined in this section.

WINDOW REGULATOR-POWER

In cases where window will not operate, check electri-

cal connections first. Figure 44 illustrates lpcation of

junctions, switches and circuit breaker.

Removal

Perform operations 1 thru 5 under Window Regulator-

Manual Removal. Note, however, that electrical connec-

tors must be removed from motor before performing

any operation on regulator. Figure 44 illustrates in-

stallation of regulator on door and regulator wiring.

Disassembly

NOTE:
Do not attempt to remove motor from

regulator until the following operations are per-

formed. THIS IS A SAFETY ITEM; arm is

spring-loaded and may cause injury if not locked

in position when motor is removed.

Refer to Figure 45.

1.
Place regulator assembly in vise.

2.
Using jumper leads to 12 volt power supply, operate

motor until semi-circular hole in sector gear cen-

ters over one of two weld nuts on mounting plate.

3.
Screw a l/4"-20 x 1" bolt into weld nut so that end

passes through hole in sector gear. It may be neces-

sary to enlarge hole in gear slightly with file or

drill. Install nut on bolt to lock arm in position.

Installation

1.
Be sure lock bolt has been removed if regulator

has been disassembled.

2.
Install lubricated regulator assembly and guide rails

in door in reverse order of removal.

3.
Install window as outlined in this section.

4.
Making sure connectors are securely installed on

motor, test operation of window thoroughly.

5. Install door trim panel and handles as outlined in

this section.

CHEVROLET CHASSIS SERVICE MANUAL

CORVETTE BODY 1B-T9

Fig.
43—Removing Regulator Assembly

REAR QUARTER

DOOR SILL PLATE AND MOLDING

Figure 49 shows assembly details of both the door sill

plate and molding. The sill plate which retains the car-*

pet, the cowl trim windlace and lock pillar front edge

trim are retained to the body by six screws.

The molding assembly, which replaces a rocker panel,

is quickly and easily replaced by removing 10 retaining

screws. The sill molding retainer is also fastened to the

body with screws.

REAR END

FOLDING TOP COMPARTMENT LID

Adjustments

Hinges

The folding top compartment lid should be adjusted so

that in the closed position the surface of the lid is flush

with surrounding body surfaces and space between lid

edge and body is 1/16" to 3/16" at sides and 3/16" to

1/4" at rear. Whenever lid position is changed on hinges,

lock engagement must be inspected and adjusted if neces-

sary. Adjust hinge position as follows:

1.
Scribe a line on lid surface following contour of hinge

strap.
This will ease observation of lid movement

during adjustment (fig. 51).

2.
To raise or lower top surface of lid, add or remove

hinge shims.

3.
To adjust spacing between lid edges and body, loosen

hinge-to-lid screws and shift lid as required.

Lock

Lock engagement may be adjusted as follows:

1.
Striker plates may be shimmed to adjust the depth

of lock engagement in striker plate. When this ad-

justment is made, release of lock should be tested

and adjusted as required.

2.
Release of lock may be adjusted by loosening lock

assembly retaining bolts and moving lock in ap-

propriate direction to the limit of slotted holes in

, lock base. Further adjustment may be gained by

moving cable retainer in appropriate direction.
Hinges

(Refer to Figure 52)

Removal

1.
Scribe around hinge as shown in Figure 51.

2.
Hinge may be removed as an assembly by opening

top compartment lid fully and removing 3 retaining

screws. Note number of shims found between hinge

frame and compartment floor.

3.
To remove spring from hinge assembly, close top

compartment lid as far as possible and insert Tool

J-9559 between expanded coils in spring. Opening

top compartment lid fully will allow removal of

spring as shown in Figure 53.

4.
As soon as spring is removed, insert long bolt sup-

plied with J-9559 through holes in end of tool, pass-

ing it through spring, and install nut on bolt.

Spring may be removed from J-9559 or J-9559 may be

installed in a new spring, by the following method:

1.
Place a closed 6 or 8 inch "C" clamp in a vise or

fasten it to a heavy bench top (bench should be fas-

tened to floor).

2.
Hook one end of spring in clamp and the other end

in hook of chain hoist, "cherrypicker" or equivalent,

as shown in Figure 54.

3.
Stretch the spring enough to allow insertion of

J-9559. Install through bolt if spring is not to be in-

stalled on hinge at once.

installation

1.
Install same number of shims as removed or, if

repairing collision damage, etc., position hinge in

compartment, install upper mounting screws, fill

gap between floor and hinge frame with shims and

install lower mounting screw.

2.
If spring has been removed from hinge, install

spring in J-9559 and place spring on hinge with com-

partment lid raised; closing lid releases J-9559 for

removal. Upper end of spring should rest in one of

three notches yielding best lid operation. About 3

pounds pressure should be necessary to close lid.

Lock

Removal

1.
Remove cable mounting clamps. Remove retainer

from control cable assembly and disengage cable

from control.

2.
Scribe a mark on lid following outer contour of lock

assembly.

3.
Remove 3 lock assembly retaining screws and re-

move lock from compartment lid.

Installation

1.
Place lock assembly on compartment lid within

scribed line and install retaining screws.

2.
Install end of cable in control assembly and fasten

retainer securely.

3.
Test operation of lock thoroughly, adjusting if neces-

sary as outlined in this section.

Control

Removal

1.
Remove inner mounting clamps from both cables

and disengage cables from control by removing

retainers.

CHEVROLET CHASSIS SERVICE MANUAL

CORVETTE BODY
1B-20

DOOR

Fig.
44—Power Window Regulator

2.
Remove
4
mounting screws and remove control from

compartment
lid.

Installation
*

1.
Position control
on
compartment
lid and
install
mounting screws.

2.
Install ends of cables in control and fasten securely

with retainers.

3.
Test operation of locks and adjust if necessary.

CHEVROLET CHASSIS SERVICE MANUAL

CORVETTE BODY 1B-21

Fig.
45—
Locking Regulator Arm in Place

REAR WINDOW-ADHESIVE CAULKED-

19437 MODEL

For parts identification refer to Figure 55.

1.
Remove the 2 rear window garnish moldings by re-

moving the 14 attaching screws.

2.
Pry molding caps from reveal moldings.

3.
Carefully remove lower, side, and top reveal mold-

ings after marking their position on body with tape.

4.
Secure one end of steel music wire to piece of wood

for handle. Insert other end through caulking mater-

ial at lower corner of rear window; then secure end

of wire to another piece of wood (fig. 56).

5. With the aid of helper, carefully cut through caulking

material (using a sawing motion) with the steel wire;

up side of window, across top, down opposite side,

and across bottom of window.

6. Remove old glass from window opening.

7. Using a sharp scraper or wood chisel, remove ad-

hesive caulking material from body pinchweld flange.

NOTE:
It is not necessary to clean off all the

old caulking material completely from body

opening; however, there should not be any loose

pieces of caulking material left in the opening.

8. Check all reveal molding retaining clips for damage

(24 required). Replace those that are bent or dis-

torted with clips provided in kit.

9. Using weatherstrip adhesive, cement rubber spacers

at bottom, sides, and top of window opening. The

step-type spacers are used at bottom and sides, the

flat type are used at the top, sides, and bottom of

window opening as shown on Figure 55.

10.
Using suction cup holders, position replacement

glass in body opening. Carefully check relationship

of glass to body pinchweld completely around open-

ing. The overlap of glass to body pinchweld and re-

taining flanges should be equal with a minimum over-
lap of 3/16M. Where necessary, position shims under

the lower spacers to obtain required overlap of glass

to body upper and lower flanges.

11.
After proper glass to pinchweld relationship has

been attained, mark position with grease pencil on

glass and body as shown in Figure 57.

12.
Remove glass from body opening and place on pro-

tected surface.

13.
Clean inside edge surface of glass so that glass is

free of any foreign material (oil, grease, etc.).

Using 3/4" masking tape, place tape approximately

1/2 inch from edge of inside surface of glass com-

pletely around glass. Then apply a film of silane

primer to inside edge surface completely around

glass,
also apply silane primer to sealing surface

of pinchweld as shown in Figure 58.

Fig.
46—Door Lock and Remote Controls

1.
Door Lock Remote Control

Assembly

2.
Door Lock Remote Control Knob

3. Door Lock Remote Control Rod
4.
Remote Control Locking Rod

5. Remote Locking Control

Assembly

6. Lock Assembly

CHEVROLET CHASSIS SERVICE MANUAL

CORVETTE BODY
1B-47

REAR

BOW

ASSY.

VIEW
C

Fig.
101—Folding
Top
Adjustments

MATERIAL
FOR
ATTACHMENT

FRONT HEADER PANEL

PAD
WIRE-ON

BINDING

WINDOW

EXTENS

SECTION
E-E

AY STRAP

SECTION

A-A

CEMENT SECURELY

REAR RAIL ONLY

Fig.
102—Folding
Top
Trim Installation

1.
To
remove superficial dust,
do not use a
dry cloth.

Use
a
soft cotton cloth moistened with water
and

wipe cross-wise
of
the window.

2.
To
wash
the
rear window,
use
cold or tepid (not hot)
water
and a
mild neutral soap suds. After washing,

rinse with clear water
and
wipe with
a
slightly

moistened clean soft cloth.
A
high quality plastic

window cleaner
is
available from Chevrolet parts

sources.

CHEVROLET
Oi
SERVia

CORVETTE BODY
1B-51

Fig.
Ill-Side Rail Weatherstrips

appear
if the
parts were cut through on the lettered lines

on
the top
assembly and the
cut
surface exposed. Arrows

indicate direction
in
which
you
would have
to
look
in

order
to see
the view shown.

Before
old
trim assembly
is
removed,
top
should
be

thoroughly adjusted
as
outlined
in
this section.
As
loose

parts
are
removed such
as
stay -straps
and
pads, their

installed positions should
be
marked
as an aid to in-

stallation
of
replacements.

Removal

1.
Remove rear side rail window sealing weatherstrip

as explained further
on in
this section; also remove

screws from ends
of
header inner weatherstrip.

Note, however, that
it is not
necessary
to
remove

header weatherstrip entirely
and
that header strip

must
be- in
place during final installation procedures

of
top
trim
so
that correct tension
of
installed trim

is achieved.

2.
Remove tacks securing
top and
header outer

weatherstrip
to
header (Figure
103).

3.
Pull cemented trim from rear side rail (Section

C-C).
REWORK PART

6280765

^GRIND
OFF

THIS PORTION

COAT
TIP
WITH GREASE PENCIL.

II INSTALL
IN
BOLT RETAINING SLOT

LOCATE
TIP
INBOARD

(BOTH SIDES)

APPLY PRESSURE
TO

MARK
LID,
DRILL,
AND
INSTALL

ATTACHING PARTS (BOTH SIDES)

Fig.
113—Hardtop Attachments
at
Rear
Bow

4.
Remove end caps from wire-on binding; remove

tacks securing binding to #3 bow (View F.). See

frame and linkage portion for bow identification.

5.
Remove staples securing trim to #3 bow.

6. Remove tacks securing upper ends of stay straps to

#3 bow. Pads may be removed at this time, if de-

sired. Mark position of pads and straps on head and

#3 bow before removal.

7.
Disconnect rear bow from top frame assembly. Two

screws retain at each side Figure 104.

8. Remove trim-rear bow assembly from vehicle to

clean work bench or table.

9. Remove plastic filler from' rear bow weatherstrip

MARK, DRILL
AND
INSTALL

ATTACHING PARTS (BOTH SIDES)

Fig.
112-Header Weatherstrip
Fig.
114—Hardtop Attachments
at
Lock Pillar Area

CHEVROLET CHASSIS SERVICE MANUAL

CORVETTE BODY 1B-52

and pull weatherstrip and trim from rear bow.

Section A-A shows installed position of these com-

ponents. Refer also to figure 105.

installation

1.
Find and mark center of header, #3 bow, rear bow

and leading and trailing edges of top trim. Align

these marks during installation and recheck their

alignment from time to time while installation is in

progress, especially during tacking or stapling.

2.
Assemble top trim and weatherstrip to rear bow,

referring to Section A-A and Figure 105. Note that

filler strip locks this assembly together and goes

in last. Align center marks.

3.
If new pads are required, install at this time, align-

ing with marks made when old pads were removed.

Figure 106 shows pad construction; Figure 107 shows

pad installed.

4.
Install top trim-rear bow assembly on top frame

with four screws removed at disassembly.

5.
Lock down rear bow in desired "top up" position.

Pull up stay straps and staple or tack to #3 bow

(fig. 108).

6. Pull leading edge of trim iip to header and align

center marks. Smooth out fabric and clamp, tack

or staple temporarily to header.

7.
Draw window extension up to #3 bow, aligning cen-

tering marks. Turn an ample amount of fabric under

and tack to #3 bow. Apply neoprene trim cement,

GM Part #3695016 or equivalent, to area shown in

View D of Figure 102. Follow directions on package.

8. Draw roof portion of trim over #3 bow, align marks

and tack on staple.

9. Trim off excess material and install wire-on binding

as shown in Figure 109 and View D of Figure 102.

Install binding caps.

10.
Remove temporary clamps or fastenings holding trim

to header.

11.
With header locked down, pull trim assembly up tight

and mark for final installation.

12.
Apply trim cement to header and rear side rail.

13.
Release header from windshield. Tack or staple trim

to header (fig. 103).

14.
Apply trim to rear side frame, previously cemented.

15.
Install weatherstrips which were removed at dis-

assembly and install retaining screws in header

weatherstrip.

16.
Make any adjustments necessary, following instruc-

tions listed under Folding Top—Adjustments.

FRAME AND LINKAGE

Figure 110 illustrates construction features of the

folding top frame and linkage. Various cross sections in

Figure 110 show the pivoting joints and their assembly.

If an operation is being performed which requires

removal of folding top trim, follow directions in this

section. The entire frame assembly may be removed and

replaced as a unit. Follow instructions for Folding Top

Trim and Rear Window Assembly and Top Assembly—

Removal and Installation.

The pivoting joints should be lubricated with light

machine oil once a year. Apply oil sparingly so as not

to stain top trim.
WEATHERSTRIP

Side Rail Weatherstrip

Figure 111 illustrates installation of side rail weather-

strip which acts to seal window opening. The weather-

strip is held in place by studs which are part of the

weatherstrip assembly, and by neoprene base cement

which is applied between weatherstrip and side rail

surface.

When replacing weatherstrip remove all rust, old

cement and foreign material from the surfaces to be

cemented, to assure successful bonding. Use only good

quality neoprene cement suitable for weatherstrip

application.

Header Weatherstrip

Weatherstrip assembly is retained to the header panel

by a combination of studs, sheet metal screws and special

fasteners as shown in Figure 112, along with neoprene

base weatherstrip cement.

Figure 99 shows' a cross section of weatherstrip taken

through a special fastener. To replace fastener, rotate

ninety degrees to align fastener head with slot. Follow

directions for cementing in the Side Rail Weatherstrip

instructions preceding this write up.

ADDING HARDTOP (ROOF PANEL ASSEMBLY)

An available roof panel assembly (hardtop) complete

can be added to convertible model Corvettes. The hard-

ware is included with the panel assembly.

Reworking of a plastic part (one for each side of the

roof panel) can be used as a marker for drilling of two

required holes in the folding top compartment lid* Hard-

ware is attached at four locations — two on the lid and

two (one each side) at the lock pillar area as follows:

1.
Rework two plastic retainers (#6280765) (used on

Chevrolet and Corvair door inner panels for trim

retention) as shown by Figure 113.

2.
Slide the reworked plastic retainers into the bolt re-

tainer slots on each side of the hardtop rear bow

(position plastic tip inboard).

3.
Mark the hardtop reveal molding at the approximate

location of the two plastic retainers,

4.
Mark the tips of the two plastic retainers with a

china marker pencil.

5.
Close the soft top compartment lid.

6. With aid of an ^assistant, position front of hardtop

onto header and lower onto vehicle. Do not fasten

latches at windshield header.

7.
Apply hand pressure at reveal molding marks.

8. Mark roof panel attachment hole location at each

lock pillar area (fig. 114).

9. With aid of an assistant, lift roof panel straight up

off body and set roof panel aside.

10.
Mark the drill position at the four china marks with

a center punch.

11.
Place a 2" x 4" board under the top compartment lid

to prevent drill damage to folding top material. Make

certain the compartment lid is securely locked

before drilling.

12.
Drill 1/8" pilot hole at the 4 marked locations.

CHEVROLET CHASSIS SERVICE MANUAL

FRONT SUSPENSION 3-9

Inspection

1.
Check bearings for cracked separators or worn or

pitted rollers and races.

2.
Check brake drum for
out-of-
round or scoring.

3.
Check fit of bearing outer cups in hub.

Repairs

Replacement of Bearing Cups

1.
Using steel bar stock, make press-out tools shown in

Figure 11.

2.
Insert removers through hub, indexing ends into slots

in hub shoulder behind bearing cup.

3.
Using a suitable extension pipe or rod, press bearing

cups from hub.

4.
Install new bearing cup in hub using Tool J-8849 on

the outer and Tool J-8850 on the inner cup (fig. 12).

Use Driver Handle J-8092 with the installers. Make

sure that the bearing cups are not cocked and are

fully seated against shoulder in hub.

Installation

1.
Pack both inner and. outer bearings using a high

melting point wheel bearing lubricant.

2.
Place inner bearing in hub, then install a new inner

bearing lip seal assembly. Seal flange should face

bearing cup.

3.
Carefully install wheel hub over steering spindle.

4.
Install outer bearing, pressing it firmly into the hub

by hand.

5.
Install spindle washer and adjusting nut. Draw up

tight and adjust wheel bearings as outlined under

"Front Wheel Bearing Adjustment".

STEERING KNUCKLE

Chevrolet, Chevelle, Camaro and Corvette—It is rec-
ommended that vehicle be raised and supported on a

twin-post hoist so that the front coil spring remains com-

pressed, yet the wheel and steering knuckle assembly re-

main accessible. If a frame hoist is used, support lower

control arm with an adjustable jackstand to safely retain

spring in its curb height position.

Chevy n— While vehicle weight is still on front wheels,

position support between upper control arm and frame

side rail (fig. 13), then raise vehicle and position adjust-

able jackstand under lower control arm.

Removal

1.
Raise vehicle and support lower control arm as noted

above.

2.
Remove hub cap, wheel hub dust cover, cotter pin,

adjusting nut and washer. Withdraw wheel and tire,

brake drum, (or, on Corvette--brake caliper and disc

and hub assembly, See Section 5) and wheel hub and

bearing assembly from steering knuckle spindle.

3.
Remove brake shoes from backing plate (except

Corvette, See Section 5) and clamp wheel cylinder.

CAUTION: Keep brake shoes clean and dry.

4.
Remove brake anchor pin and two bolts securing

brake backing plate and steering arm to steering

knuckle.

5.
Withdraw steering arm and brake backing plate from

steering knuckle. Wire backing plate to frame (fig.

13).
Do not disconnect brake line.

NOTE: Refer to Section 9 - Steering Linkage -

Tie Rod, for further steering arm service

operations.

6. Remove upper and lower ball stud cotter pins and re-

move ball stud nuts. Free steering knuckle from

ball studs by rapping steering knuckle bosses. With-

draw steering knuckle.

Installation

1.
Place steering knuckle in position and insert upper

and lower ball studs into knuckle bosses.

2.
Install ball stud nuts and tighten nut as shown in the

specifications at the end of this section.

Fig.
12 - Installing Front Hub Inner Bearing
Fig.
13 - Backing Plate Removed - Chevy II

CHEVROLET CHASSIS SERVICE MANUAL