Bleeding System

See Hydraulic Brake Bleeding in this section.

Fig 1: BRAKE ASSEMBLY - CADILLAC (TYPICAL)

G09321178

Courtesy of GENERAL MOTORS COMPANY

TIGHTENING SPECIFICATIONS

Application			Ft. Lbs.
Wheel Attaching Nuts
Buick
	Century & Apollo		70
	All Others		90
Cadillac			100
Chevrolet
	Chevrolet Models		80-100
	All Others		60-80
Oldsmobile
		Omega, Cutlass	80
		88, 98	85
		Toronado	130
Pontiac
		Catalina, Bonneville, Grand Ville	75
		All Others	70

Fig 2: WHEEL CYLINDER DISASSEMBLED

G09321179

Courtesy of GENERAL MOTORS COMPANY

BRAKE SYSTEM SPECIFICATIONS

Application

Drum Diam.

Wheel Cylinder Diameter

Master Cylinder

Front

Rear

Diameter

Buick

Apollo

9.5"

⁽²⁾

.875"

1.125"

Century

9.5"

⁽²⁾

.975"

1.00"⁽¹⁾

LeSabre, Electra, Riviera

11"

⁽²⁾

.938"

1.125"

Estate Wagon

12"

⁽²⁾

1.00"

1.125"

Cadillac

All

12"

⁽²⁾

.938"⁽⁴⁾

1.125"

Chevrolet

Nova

9.5"

⁽²⁾

.875"

1.00"⁽¹⁾

Chevelle (Exc. S/W), Camaro, Monte Carlo

9.5"

⁽²⁾

.875"

1.00"⁽¹⁾

Chevelle Station Wagon

11"

⁽²⁾

.938"

1.00"⁽¹⁾

Chevrolet (Exc. S/WO

11"

⁽²⁾

.938"

1.125"

Chevrolet Station Wagon

12"

⁽²⁾

1.00"

1.125"

Oldsmobile

Omega, Cutlass (Exc. S/W)

9.5"

⁽²⁾

.875"

1.125"

Cutlass Station Wagon

11"

⁽²⁾

.875"

1.125"

88, 98, Toronado

11"

⁽²⁾

.938"

1.125"

Custom Cruiser Wagon

12"

⁽²⁾

1.00"

1.125"

Pontiac

Ventura, Firebird, LeMans (Exc. S/W), Grand Am⁽³⁾

9.5"

⁽²⁾

.875"

1.00"⁽¹⁾

LeMans Station Wagon

11"

⁽²⁾

.938"

1.00"⁽¹⁾

Catalina, Grand Ville (Exc. S/W), Bonneville, Grand Prix

11"

⁽²⁾

.938"

1.125"

Catalina, Grand Ville Station Wagon

12"

⁽²⁾

1.00"

1.125"

⁽¹⁾	Power Disc Brakes - 1.125".

⁽²⁾	Front Disc Brake Equipped.

⁽³⁾	Four door Sedans with V8 and Power Brakes, built at Pontiac Mich. use same brakes as station wagon models.

⁽⁴⁾	Commercial Chassis - 1.00".

BRAKE LINING SPECIFICATION

Application

Drum Dia

Width

Length

Thickness

Front

Rear

Primary

Secondary

Primary

Secondary

Buick

Apollo

9.5"

⁽¹⁾

2"

7.63"

9.91"

.19"

.27"

Century

9.5"

⁽¹⁾

2"

7.57"

9.83"

.196"

.265"

LeSabre, Electra, Riviera

11"

⁽¹⁾

2"

8.93"

11.58"

.232"

.275"

Estate Wagon

12"

⁽¹⁾

2"

9.90"

12.85"

.236"

.296"

Cadillac

All (Exc. Eldorado)

12"

⁽¹⁾

2.5"

11"

12.36"

.23"

.26"

Eldorado

12"

⁽¹⁾

2"

9"

12"

.20"

.20"

Chevrolet

Nova, Camaro

9.5"

⁽¹⁾

2"

9.01"

9.75"

.20"

.20"

Monte Carlo, Chevelle (Exc. S/W)

9.5"

⁽¹⁾

2"

7.58"

9.84"

.23"

.30"

Chevelle Station Wagon

11"

⁽¹⁾

2"

8.95"

11.59"

.25"

.29"

Chevrolet (Exc. S/W)

11"

⁽¹⁾

2"

8.95"

11.59"

.25"

.29"

Chevrolet Station Wagon

12"

⁽¹⁾

2"

9.83"

12.77"

.25"

.32"

Oldsmobile

Omega, Cutlass (Exc. S/W)

9.5"

⁽¹⁾

2"

7.63"

9.91"

.19"

.27"

Cutlass Station Wagon

11"

⁽¹⁾

2"

9.00"

11.5"

.22"

.26"

88, 98

11"

⁽¹⁾

2"

9.00"

11.5"

.22"

.26"

Custom Cruiser Wagon

12"

⁽¹⁾

2"

12.0"

12.0"

.22"

.26"

Toronado

11"

⁽¹⁾

2"

8.9"

11.6"

.22"

.29"

Pontiac

Ventura, Firebird

9.5"

⁽¹⁾

2"

9.12"

9.87"

.20"

.20"

Grand Am, LeMans (Exc. Station Wagon)⁽²⁾

9.5"

⁽¹⁾

2"

7.63"

9.91"

.208"

.277"

LeMans Station Wagon, Grand Prix

11"

⁽¹⁾

2"

8.93"

11.58"

.232"

.272"

Catalina, Bonneville, Grand Ville (Exc. S/W)

11"

⁽¹⁾

2"

8.88"

11.53"

.25"

.29"

Safari Wagons

12"

⁽¹⁾

2"

9.896"

12.828"

.232"

.296"

⁽¹⁾	Front Disc Brake Equipped.

⁽²⁾	Four door Sedans with V8 and Power Brakes, built at Pontiac Mich. use same brakes as station wagon models.

BRAKE DRUM SPECIFICATIONS
Application		Drum Diameter	Original Diameter	Maximum Refinish Diameter	Discard Diameter
General Motors
	All Models	9 1/2"	9.500"	9.560"	9.590"
		11"	11.000"	11.060"	11.090"
		12"	12.000"	12.060"	12.090"