parking brake CHEVROLET CAMARO 1967 1.G Chassis User Guide

REAR SUSPENSION AND DRIVE LINE 4-9

Fig.
17—Rear Spring—Exploded View (Chevy II)

LEAF SPRING, SPRING SEAT PADS, SPRING EYE

BUSHINGS Chevy II (Fig. 17)

Removal

1.
Raise vehicle and support rear axle assembly.

2.
Pull parking brake cable out of lower spring pad

mounting bracket clamp and disconnect cable above

axle housing. Remove four nuts securing lower

spring pad mounting bracket to axle spring seat

(fig. 18). Drop lower bracket and remove rubber

spring pad.

3.
Loosen and drive out front spring eye bolt. Lower

spring and remove front rubber eye bushing (fig. 19).

4.
Remove nuts from rear spring shackle (fig. 20),

spread shackle to separate it from spring eye and

support bracket and remove spring. Remove rear

spring eye bushings.

5.
Remove upper spring pad cushion.

Installation

1.
Inspect spring eye bushings and spring pads for ex-

cessive wear or aging and replace as necessary.

Inspect spring rear shackles, front spring bracket

and eye bolt for bending or cracking and correct

where needed.

2.
Assemble spring rear shackle as follows:

a. All except Station Wagons (fig. 21).
Fig.
19—Removing Front Eye Bushings (Chevy II)

3.
' Fig. 20—Disassembling Rear Spring Shackle (Chevy II)

1.
Insert inboard rubber spring eye bushings into

i'ear spring eye and outboard shackle bushings

into shackle mounting bracket.

2.
Position spring and install shackle to spring

and mounting bracket with top nut toward out-

board of vehicle and bottom nut toward vehicle

centerline.

3.
Tighten nuts but-do not torque at this point,

b.
Station Wagon (fig. 22):

When installing shackle as in Step 2 above, top

nut should be toward centerline of vehicle and

bottom nut toward outboard of vehicle.

Insert inboard rubber bushing into front spring eye.

Fig.
18—Removing Lower Pad Bracket (Chevy II)
Fig.
21—Rear Spring Shackle Exploded View-All

Except Station Wagon (Chevy II)

CHEVROLET CHASSIS SERVICE MANUAL

REAR SUSPENSION AND DRIVE LINE 4-11

lower cushion

correct.
will be aligned if installation is

Fig.
25—Installing Spring Front Bushing (Camaro)

Unnecessary torque applied after flange is

seated will tend to distort flange and reposition

bushing in spring.

i. Disassemble bushing installation tools and re-

move from spring.

8. Pry parking brake cable out of the retainer bracket

mounted on the spring mounting plate.

9. Remove spring bracket-to-axle bracket retaining

nuts,
remove upper and lower rubber spring pads

and bracket.

10.
Support spring, then remove lower bolt from spring

rear shackle. Separate shackle and withdraw spring

from vehicle.

11.
Remove rear spring shackle upper bolt and withdraw

shackle bushings from frame.

Installation

1.
Position spring front mounting bracket to spring

front eye. Spring attaching bolt must be installed

so that head of bolt is toward center of vehicle.

2.
Position spring shackle upper bushings in frame,

position shackles to bushings and loosely install

bolt and nut.

3.
Install bushing halves in spring rear eye, place

spring to shackles and loosely install shackle lower

bolt and nut.

NOTE: When installing spring, make sure

spring is positioned so that parking brake cable

is on underside of spring.

4.
Raise front end of spring and position bracket to

underbody. Guide spring into position so that it will

index in the axle bracket and also make sure that

the tab on spring bracket is indexed in slot pro-

vided in the underbody.

5.
Loosely install spring-to-underbody bracket.

6. Position spring upper cushion between spring and

axle bracket so that spring cushion ribs align with

axle bracket locating ribs.

7.
Place lower spring cushion on spring so that .cushion

is indexed on locating dowel. Upper cushion and
8. Place lower mounting plate over locating dowel on

spring lower pad and loosely install retaining nuts.

9. If new mounting plate was installed, transfer parking

brake cable retaining bracket to new plate.

10.
Position shock absorber to spring mounting plate and

loosely install eye bolt and nut - head of bolt should

be toward front of vehicle.

11.
Position parking brake cable in retaining bracket and

securely clamp bracket to retain cable.

12.
Remove stand jacks and lower vehicle so that weight

of vehicle rests on suspension components. Torque

all affected parts to specifications.

SHOCK ABSORBER

Chevrolet and Chevelle

Removal

1.
Raise rear of vehicle and support rear axle

assembly.

If equipped with superlift shock absorber, disconnect

air line from shock absorber.

Disconnect shock absorber at upper mounting bracket

by removing the two retaining bolts. Refer to Figure

26 for shock absorber mounting details. (Chevelle

components shown as typical.)

Disconnect shock absorber at lower attaching bracket

and remove shock.

NOTE: When performing any service opera-

tions that requires removal or loosening of the

lower attaching nut, it is essential that the stud

be prevented from turning. A hex is located on

the stud between the axle bracket and shock

absorber in order that a wrench may be used

for this purpose. Failure to hold the stud in

this manner will result in damage to the mer

chanical bond between the shock absorber bush-

ing and the mounting stud.
2.

3.

STATION WAGON AND PICKUP

Fig.
26—Shock Absorber Mounting—Exploded View

(Chevelle)

CHEVROLET CHASSIS SERVICE MANUAL

REAR SUSPENSION AND DRIVE LINE 4-18

ig.
44—Rear Suspension Tie Rod Attaching Points (Chevrolet)

Bushing
Replacement

The following bushing removal procedure is effective

for both ends of the tie rod used on station wagons and

the left end of the tie rod used on all models except

station wagons.

1,
With tie rod bushing centered over Tool J-7877-2

and with tie rod supported horizontally, press or

drive bushing from rod, using Tools J-7877-1 and

J-7079-2 as shown in Figure 45.

2.
With tie rod centered over Tool J-7877-2 and rod

supported horizontally, press or drive bushing into

arm using Tools J-7877-3 and J-7079-2 as shown

in Figure 45. Tool J-7877-3 should bottom on tie

rod when bushing is fully installed.
fig.
45—Tie Rod Bushing Replacement (Chevrolet)

Installation

1.
Mount the tie rod to the axle bracket stud. Install

nut and special washer but do not tighten.

NOTE:
On the tie rod used on all models except

station wagons, place flanged portion of bushing

against attaching bracket.

2.
Install the bolt, lock washer and nut to the frame

bracket (fig. 44). Do not tighten.

NOTE:
Bolt may be installed from either

direction.

3.
Lower vehicle to floor (if raised) and bounce rear

end several times to settle bushings. Tighten af-

fected parts to specifications.

COMPONENT PARTS REPLACEMENT (CORVETTE)

WHEEL SPINDLE AND SUPPORT (Fig. 46)

Removal

Hemdve wheel drive spindle as outlined previously in

this section under "Wheel Bearing Adjustment".

Repairs

Out of 3/8" square steel bar stock, make bearing

removers and use as shown in Figure 47.

After removing deflector, spindle inner grease seal

and inner bearing race, bearing cups may be re-

moved while spindle support is still mounted to the

torque arm, by inserting remover tool and tapping

cup out. New bearing cups are installed using Tool

J-7817 cup installer and handle J-8092 (fig. 48).

To remove spindle support from torque arm, pro-

ceed as follows.

a. Disconnect parking brake cable from actuating

lever.

b.
Remove four nuts securing support to torque arm

and withdraw brake backing plate and position it

out of the way.

c. Disconnect shock absorber lower eye from strut

rod mounting shaft. It may be necessary to sup-

port spring outer end before disconnecting shock
absorber, as shock absorber has internal rebound

control.

d. Remove cotter pin and nut from strut rod mount-

ing shaft, then pull shaft from support and strut

rod.

e. Spindle support may then be removed and bearing

cups serviced as in Step 2 above.

4.
To remove drive spindle outer bearing and seal

proceed as follows.

a. Position Tool J-8331 between chamfered edge of

bearing seat and inner race of bearing (fig. 49).

Clamp Tool J-8331 in a vise and apply pressure

to unseat bearing.

CAUTION: Use extreme caution when position-

ing Tool J-8331 against machined surface of

spindle. Make sure all tool imperfections such

as nicks and burrs are removed from spindle

contact area before applying pressure to unseat

bearing.

b.
Position Tool J-8331 and spindle in an arbor

press and press bearing from spindle (fig. 50).

c. Remove outer seal and inspect for damage--re-

place if necessary. Outer seal must be placed on

spindle before outer bearing inner race and roller

CHEVROLET CHASSIS SERVICE MANUAL

REAR SUSPENSION AND DRIVE LINE 4-20

Fig.
51—Shock Absorber Installation (Corvette)

6. Tap new spindle inner grease seal into seal bore

and install deflector over support inner end.

Installation

1.
Position support over torque arm bolts with strut

rod fork toward center of vehicle and downward.

Place backing plate over studs and torque nuts to

specifications.

2.
Connect parking brake cable to actuating lever.

3.
Install drive spindle assembly as outlined previously

in this section under "Wheel Bearing Adjustment".

4.
If new spindle support or associated parts are in-

stalled, determine correct shim size as follows.

a. Assemble spindle to support, using a .145" shim.

b.
Check bearing adjustment and correct as neces-

sary, following adjustment procedures previously

outlined.

DIFFERENTIAL CARRIER SUPPORT

BRACKET REPLACEMENT

1.
Place a 1/2" thick block of wood or steel between

nose of differential carrier and floor pan. This will

prevent carrier from twisting upward when support

bracket is disconnected.

2.
Remove carrier support-to-crossmember attaching

bolt.

3.
Remove nut from both of the bracket-to-carrier

through bolts.

4.
Slide bolts to one side until bolt head contacts floor

well. Mark the floor well at this point and drill a

3/4"
diameter hole for each bolt in floor well and

remove bolts.

5. Assemble carrier support bracket by reversing

above procedure. Torque all affected parts to

specifications.

6. Insert plastic plugs from the inside of the floor well

holes to prevent dust and water entry.
STRUT ROD SHAFT STRUT ROD

CAMBER CAM

AND BOLT

Fig.
52—Strut Rods (Corvette)

SHOCK ABSORBER (Fig. 51)

Removal

1.
Disconnect shock absorber upper mounting bolt*

2.
Remove lower mounting nut and lock washer.

3.
Slide shock upper eye out of frame bracket and pull

lower eye and rubber grommets off strut rod mount-

ing shaft.

4.
Inspect grommets and shock absorber upper eye for

excessive wear.

Installation

1.
Slide upper mounting eye into frame mounting

bracket and install bolt, lock washer and nut.

2.
Place rubber grommet, shock lower eye, inboard

grommet, washers and nut over strut rod shaft.

3.
Torque nuts to specifications.

STRUT ROD AND BRACKET (Fig. 52)

Removal

1.
Raise vehicle enough to provide working clearance.

2.
Disconnect shock absorber lower eye from strut

rod shaft.

3.
Remove strut rod shaft cotter pin and nut. With-

draw shaft by pulling toward front of vehicle (fig. 53).

4.
Mark relative position of camber adjusting cam and

Fig.
53-Removing Strut Rod Shaft (Corvette)

CHEVROLET CHASSIS SERVICE MANUAL

REAR SUSPENSION AND DRIVE LINE 4-23

Fig.
62—Torque Control Arm (Corvette)

2.
Place center clamp plate in position and install four

bolts and washers. Tighten bolts and torque to

specifications.

3.
Raise spring outer end with floor jack until spring

is nearly flat and secure with chain as in Step 3-

Removal.

.4.
Lower jack, align torque control arm with spring

end and insert link bolt, rubber cushions and re-

tainers. Install castellated nut on link bolt and

tighten until cotter pin hole in bolt is visible. In-

sert new cotter pin and bend ends around.

5. Raise spring end with jack under link bolt, and re-

move chain and C clamp when loose.

6. Carefully lower jack, making sure rubber cushions

remain indexed in retainers.

7. Remove jack and repeat on opposite side. Install

wheels and tires, remove frame supports and lower

vehicle to floor.

TORQUE CONTROL ARM (Fig. 62)

Removal

1.
Disconnect spring on side torque arm is to be re-

moved. Follow Steps 1-6, Spring-Removal.

NOTE:
If vehicle is so equipped, disconnect

stabilizer rod from torque arm - refer to

"Stabilizer Rod Replacement".

2.
Remove shock absorber lower eye from strut rod

shaft.

3.
Disconnect and remove strut rod shaft and swing

strut rod down.

4.
Remove four bolts securing axle drive shaft to

spindle flange and disconnect drive shaft.

NOTE:
It may be necessary to force torque

arm outboard to provide clearance to drop drive

shaft.

5. Disconnect brake line at wheel cylinder inlet or

caliper and from torque arm. Disconnect parking

brake cable.

6. Remove torque arm pivot bolt and toe-in shims and

pull torque arm out of frame. Tape shims together

and identify for correct reinstallation.
RETAINER

RETAINER

PLATE

BUSHING

CONTROL ARM

Fig.
63—Torque Control Arm Bushing Cross-Sect ion (Corvette)

NOTE:
For service operations pertaining to

the spindle support assembly, refer to service

operations under Wheel Spindle and Support

earlier in this section.

Repairs (Fig. 63)

1.
Using 11/16" drill, drill out flared end of bushing

retainer (fig. 64).

2.
Remove special retainer plate and tap retainer out

of bushing.

3.
Remove bushings by spreading them apart with a

chisel and tap out of arm (fig. 65).

NOTE:
If bushing diameters are severely

rusted in torque arm, and arm tends to spread

during removal, clamp arm in a C-clamp to

prevent spreading.

Fig.
64—Drilling Out Retainer Flare (Corvette)

CHEVROLET CHASSIS SERVICE MANUAL

REAR SUSPENSION AND DRIVE LINE 4-30

Fig.
76—Differential Gear Failure

Hypoid Gears

Hypoid gear tooth scoring (fig. 74) is caused generally

by improper break-in, incorrect lube, insufficient gear

backlash or improper 'ring/pinion gear alignment. The

scoring will progressively lead to complete erosion of

the gear tooth, or gear tooth pitting and eventual fracture

with possible attendant damage to bearings, if the initial
scoring condition is not diagnosed in time and corrected.

Hypoid gear scoring is easily recognized by its char-

acteristic loud whine in either drive, coast or under both

conditions. Another cause of hypoid tooth fracture (fig.

75) is extended overloading of the gear set which will

produce fatigue fracture, or shock loading which will

result in sudden failure.

Differential Gears

Common causes of differential gear failure are shock

loading, extended overloading leading to fatigue failure,

and overheating of gear thrust surfaces resulting from

excessive wheel spin and consequent lubrication break-

down. Overheating will lead to seizing of thrust surfaces

or tooth failure (fig. 76).

Bearings

• Failure of axle tapered roller bearings is due pri-

marily to excessive wear caused by long service or

foreign materials in the oil. The second most common

cause of bearing failure is too tight or too loose pre-

load adjustment leading to spalling and eventual failure.

This failure may also lead to hypoid gear scoring due to

the resultant misalignment of the hypoid gear set.

COMPONENT PARTS REPLACEMENT

(Chevrolet, Cheveile, Chevy II and Camaro)

AXLE ASSEMBLY

Removal

1.
Raise vehicle to a height that will permit axle as-

sembly to hang freely and position supports under

both frame side rails.

2.
Disconnect wheel cylinder inlet lines. Disconnect and

remove brake hose and brake line retaining bracket

by removing retaining bolt from carrier cover.

3.
Loosen parking brake equalizer adjusting nut and

disconnect both rear cables at frame bracket and at

control arms. See Section 5 for detail of parking

brake cable removal.

4.
Remove two trunnion bearing "U" bolts from the

rear yoke and separate rear universal joint. Wire

propeller shaft to frame side rail and tape trunnion

bearing cups.

5. Support arid secure axle assembly with an adjustable

lifting device. On Chevrolet and Cheveile models,

loosen upper and lower control arm attaching bolts

at axle housing. (On Chevrolet models, disconnect

tie rod at axle bracket.)

6. Disconnect shock absorbers at axle brackets. Refer

to Shock Absorber Removal procedures outlined in

this section.

7. On Chevrolet and Cheveile models, lower axle as-

sembly until suspension reaches end of travel, then

disconnect spring retainers and withdraw springs

from vehicle.

8. On Chevy II and Camaro models, remove four nuts

securing lower spring seat to axle housing, then

remove spring front eye bolts or spring attaching

bracket and swing spring to rear so that it does not

interfere with axle.

9. On Chevrolet and Cheveile models, disconnect upper

and lower control arm attaching bolts at axle housing*
10.
Lower axle assembly and remove from under vehicle.

Installation

1.
Place axle assembly under vehicle and raise into

position.

2.
On Chevrolet and Cheveile models, install, but do not

tighten, upper and lower control arm attaching bolts

at axle housing.

3.
On Chevrolet models, position coil springs in upper

seats so that end of spring is indexed in seat.

4.
On Chevrolet models, install lower end of spring on

axle bracket or control arm and secure by installing

retainer and bolt. Install lock washer and retainer

nut.

5. On Cheveile pry lower pigtail of spring over vertical

flange of the axle bracket spring seat.

6. On Chevy II and Camaro models, install spring seat

pads and swing springs up into spring seats on axle

housing, making sure upper seat pads are aligned in

axle housing bracket.

7. Install spring front eye bolt and tighten, then install

spring seat lower mounting bracket and retaining

nuts.

8. Raise axle assembly to allow shock absorber and tie

rod installation. Position shock absorber in axle

bracket. Torque nut as outlined in Shock Absorber

Installation procedures.

9. Install brake hose and brake line retaining bracket

to carrier and connect wheel cylinder inlet lines.

Connect parking brake cable to frame bracket and

at control arm. Adjust parking brake and bleed

brakes as outlined in Section 5.

10.
Reassemble rear universal joint to companion flange.

11.
Support vehicle at axle and remove supports from

beneath the frame side rails.

12.
Remove supports and lower vehicle to floor. Torque

all affected parts to specifications.

CHEVROLET CHASSIS SERVICE MANUAL

BRAKES

SECTION 5

CONTENTS OF THIS SECTION

Duo Servo Brakes

Disc Brakes
Page

5-1 Power Brakes

5-24 Special Tools
Page

5-31

5-32

DUO-SERVO BRAKES

INDEX

Page

General Description 5-1

Maintenance and Adjustments 5-3

Hydraulic Brake Fluid .. . 5-3

Bleeding Hydraulic System 5-3

Pressure Bleeding 5-3

Manual Bleeding 5_4

Push Rod to Main Cylinder Clearance 5-5

Hydraulic Brake Lines 5-5

Hydraulic Brake Hose 5-5

Hydraulic Brake Tubing 5-6

Brake Adjustment. .................... 5-7

Service Brake 5-7

Parking Brake 5-8

Component Replacement and Repairs 5-9

Parking Brake - Chevrolet, Chevelle and

Camaro 5^9

Pedal Assembly 5-9

Front Cable ,. . . 5-9

Center Cable 5-9

Rear Cables. . 5-9
Parking Brake - Chevy n 5-9

Lever Assembly 5-9

Idler Lever 5-11

Front Cable 5-11

Rear Cable . . ; 5-12

Parking Brake - Corvette 5-13

Lever Assembly . . . . 5-13

Front Cable 5-14

Rear Cable . . 5-14

Brake Pedal 5-15

Shoes and Linings 5-16

Organic 5-16

Metallic 5-17

Main Cylinder 5-18

Wheel Cylinders 5-21

Anchor Pin 5-22

Front Wheel 5-22

Rear Wheel 5-22

Brake Drums • 5-22

Brake Pipe Distribution and Switch Assembly . . . . . 5-23

Camaro Pressure Regulator Valve 5-23

GENERAL DESCRIPTION

All 1967 models are equipped with a new split brake

system as a safety feature. If a wheel cylinder or brake

line should fail at either the front end or rear end of

the vehicle, the operator can still bring the vehicle to

a controlled stop. The system is designed with separate

hydraulic systems for the front and rear brake using

a dual master cylinder (fig. 1). The design of the master

cylinder is similar to that used on the 1966 Corvette

in that it has two entirely separate reservoirs and outlets

in a common body casting. The front reservoir and outlet

is connected to the front wheel brakes, and the rear

reservoir and outlet is connected to the rear wheel

brakes. Two pistons within the master cylinder receive

mechanical pressure from the brake pedal push rod and

transmit it through the brake lines as hydraulic pressure

to the wheel cylinders. The filler cap is accessible from

inside the engine compartment.

A new brake pipe distribution and switch assembly

is mounted below the main cylinder. The front and rear

hydraulic brake lines are routed from the main cylinder,

through the brake pipe distribution and switch assembly,

to the front and rear brakes as shown in Figure 2. The

switch is wired electrically to the brake alarm indicator

light on the instrument panel. In the event of fluid loss

in either the front or rear brake system the indicator

on the instrument panel will illuminate red. (The indi-
cator will also' be illuminated when the parking brake is

applied.)

On Camaro models equipped with air conditioning, the

rear brake hydraulic line is routed through a pressure

regulator valve mounted on the left frame side rail

(fig. 3). The valve controls the hydraulic pressure to

the rear brakes resulting in the correct pressure balance

between the front and rear hydraulic systems.

The self-adjusting brakes (fig. 4), used on both front

and rear of all models, are the Duo-Servo single anchor

type which utilize the momentum of the vehicle to assist

in the brake application. The self-energizing or
self-

actuating force is applied to both brake shoes at each

wheel in both forward and reverse motion. The brake

shoe linings are bonded to the shoes.

Wheel cylinders are the double piston type permitting

even distribution of pressure to each brake shoe. To

keep out dust and moisture, both ejads of each wheel

cylinder are sealed with a rubber booC The wheel

cylinders have no adjustments.

The Chevrolet, Chevelle, and Camaro parking brakes

have a foot operated ratchet type pedal mounted to the

left of the steering column. A cable assembly connects

the pedal to an intermediate cable by means of an equal-

izer, where the adjustment for the parking brake is

incorporated. The intermediate cable attaches to the

CHEVROLET CHASSIS SERVICE MANUAL

BRAKES 5-2

DELCO MORAINE MAIN CYLINDER

BENDIX MAIN CYLINDER

Fig.
I—Main
Cylinder

two rear cables which operate the rear service brake.

The Chevy II has a single-stroke, ratchet-type parking

brake release lever, located to the right of the steering

column. The lever is connected to the rear wheel brake

assemblies through a two-piece cable and equalizer

assembly. A dash mounted idler lever multiplies force

applied at the parking brake lever and transmits it to

the equalizer by means of the front cable. The one-piece

rear cable passes through the equalizer and is connected
at each end to an actuating lever within the rear brake

assembly.

The Corvette is equipped with a ratchet-type parking

brake lever located behind the console. The parking

brake cable runs forward from the lever to a pulley

assembly mounted on a frame crossmember, then back

to an equalizer near the rear frame crossmember. A

single piece rear cable passes through the equalizer

and back to the rear service brakes.

— CHEVROLET
CAMARO

Fig.
2—Brake Pipe Distribution and Switch Assembly

CHEVROLET CHASSIS SERVICE MANUAL

BRAKES 5-8

Fig.
17—-Checking Brake Shoe Lining Clearance

Using Tool J-21177

b.
Turn the tool to the opposite side and fit over

the brake shoes by turning the star wheel, until

the gauge just slides over the linings (fig. 17).

c. Rotate the gauge around the brake shoe lining

surface to assure prpper clearance.

Alternate

a. Using the brake drum as an adjustment fixture

turn the star wheel until the drum slides over

the brake shoes with a slight drag.

b.
Turn the star wheel 1-1/4 turns to retract the

shoes.
This will allow sufficient lining-to-drum

clearance so final adjustment may be made as

described in Step 4.

3.
Install the drum and wheel.

NOTE: 1: If lanced area in brake drum is

knocked out, be sure all metal has been re-

moved from brake compartment. Install new

hole cover in drum to prevent contamination

of the brakes.

NOTE: 2: Make certain when installing drums

that drums are installed in the same position

as when removed with the drum locating tang

in line with the locating hole in the wheel hub

(fig. 18).

4.
Make final adjustment by making numerous forward

and reverse stops, applying brakes with a firm

pedal effort until a satisfactory brake pedal height

results.

NOTE: Frequent usage of an automatic trans-

mission forward range to halt reverse vehic;..$

motion may prevent the automatic adjuster.:?

from functioning, thereby inducing low pedal

heights.
Fig.
.18—Aligning Drum Tang with Wheel Hub

Parking Broke

The rear brake assemblies serve a dual purpose in

that they are utilized both as a hydraulically operated

service brake and also as a mechanically operated

parking brake. In view of this dual purpose, the service

brake must be properly adjusted as a base for parking

brake adjustment; conversely the parking brake must

be properly adjusted for the service brake to function

as intended.

Adjustment

1.
Jack up both rear wheels.

2.
Apply parking brake, two notches from fully re-

leased position.

3.
Loosen the equalizer forward check nut, and tighten

or loosen the rear nut until a light to moderate drag

is felt when rear wheels are rotated.

4.
Tighten check nuts securely.

5.
Fully release parking brake and rotate rear wheels;

no drag should be present.

Inspection

If complete release of the parking brake is not ob-

tained, unless it is forcibly returned to its released

position, or if application effort is high, check parking

brake assembly for free operation. If operation is sticky

or a bind is experienced, correct as follows:

1.
Clean and lubricate brake cables and equalizer.

2.
Inspect brake assembly for straightness and align-

ment (replace if necessary).

3.
Clean and lubricate parking brake assembly.

4.
Check routing of cables for kinks or binding.

CHEVROLET CHASSIS SERVICE MANUAL

BRAKES 5-9

COMPONENT REPLACEMENT AND REPAIRS

PARKING BRAKE-CHEVROLET, CHEVELLE AND

CAMARO (Figs. 19 and 20)

Pedal Assembly

Removal

NOTE:
Remove positive cable from battery to

eliminate the possibility of creating short cir-

cuits under dash.

1.
Place parking brake pedal in released position.

2.
Remove equalizer check nut, and separate cable

stud from equalizer.

3.
Remove two attaching nuts from mounting studs

located in engine compartment.

4.
Remove front cable .ball end from pedal assembly

swivel.

5. Remove pedal assembly to dash brace attaching

screw.

6. Remove pedal assembly by lowering rear slightly

to avoid scratching dash, and pulling, it out of the

firewall.

Installation

1.
Place pedal assembly in position with the two mount-

ing studs protruding through the holes provided in

the firewall.

2.
Install and tighten pedal assembly to dash brace

attaching screw.

3.
Position front cable ball end into pedal assembly

swivel.

4.
Install and tighten two attaching nuts on mounting

studs located in engine compartment.

5. Place
,
equalizer in position on center cable and

insert front cable stud through equalizer and secure

with check nut.

6. Adjust parking brake as outlined under Maintenance

and Adjustments in this section.

7. Connect positive battery cable.

Front Cable

Removal

NOTE:
Remove positive cable from battery to

eliminate the possibility of creating short cir-

cuits under dash.

1.
Place parking brake pedal in released position.

2.
Remove equalizer check nut, and separate cable

, stud from equalizer.

3.
Remove retainer from cable assembly at inner side

of frame rail.

4.
Remove ball end of cable from pedal assembly

swivel.

5. Compress expanded conduit locking fingers at toe

pan arid withdraw cable from car.

6. On Chevelle, if necessary, remove rubber tube

from front cable.

Installation

1.
On Chevelle, if necessary, replace rubber tube

over front cable.

2.
Position cable ball and conduit tip through cutout

in firewall. Make sure conduit locking fingers are

fully expanded and secured in cutout, then position

cable ball into pedal assembly swivel.
3.
Feed stud end of cable through frame rail and se-

cure with retainer on inner side of frame.

4.
Place one check nut on cable stud and insert stud

through equalizer, (make sure center cable is in

position), then place second check nut on stud.

5. Adjust parking brake as outlined in this section.

6. Connect positive battery cable.

Center Cable

Removal

1.
Place parking brake pedal in released position.

2.
Remove equalizer check nut and remove equalizer

from cable.

3.
Remove cable from cable guides.

4.
Disconnect center cable from rear cables at

connectors.

Installation

1.
Install cable ends into rear cable connectors.

2.
Place cable through equalizer and install equalizer

on to front cable stud, secure with check nut. (Do

not tighten.)

3.
Install cable in cable guides (figs. 19 and 20),

4.
Adjust parking brake as outlined in this section.

Rear Cables

Removal

1.
Place parking brake pedal in released position.

2.
Remove equalizer check nut and remove equalizer

from cable.

3.
Remove rear cable from connector.

4.
Remove retainer from rear cable at frame bracket.

Pull cable out of bracket.

5. Remove rear brake drum as outlined in this section.

6. Remove rear brake shoes as outlined in this section.

7. Remove cable end from parking brake actuating

lever.

8. Compress expanded conduit locking fingers at flange

plate entry hole and withdraw cable.

Installation

1.
Pass end of cable and conduit tip through flange

plate entry hole, making sure that conduit locking

fingers all expand fully.

2.
Connect cable end to actuating lever.

3.
Install rear brake shoes, drum and wheel as out-

lined in this section.

4.
Pass cable through frame bracket and install

retainer.

5. Install cable end into cable connector.

6. Position equalizer on center cable and place on

front cable stud, secure with check nut.

7. Make sure all center cable guides are in place

and adjust parking brake as outlined in this section.

PARKING BRAKE-CHEVY II (Fig. 21)

Lever Assembly

Removal

NOTE:
Remove positive cable from battery

to eliminate possibility of creating short cir-

cuits under dash.

CHEVROLET CHASSIS SERVICE MANUAL