Fluid Type

Hydraulic Brake (Glycol) Fluid GM Specification GM P/N 12377967 (DOT 3 )

Filling Quantity

0.40 liters

20.5 ounces

Master Cylinder

• Design Type

Tandem Cylinder

Bore Diameter (Nominal)

• Primary Piston

24.40 mm

0.960 in

• Secondary Piston

20.64 mm

0.812 in

Piston Travel

• Primary

22 mm

0.866 in

• Secondary

14 mm

0.551 in

Split

• Front

62.4%

• Rear

37.6%

Power Brake Booster Design

Tandem Diaphragm

Power Brake Booster Diameter

225 mm

8.858 in

Brake Master Cylinder Pushrod Clevis Pin Bore to Top of Booster Housing

180 mm +/-1.0 mm

7.1 +/-0.4 in

Brake Master Cylinder Pushrod Clevis Pin Bore to Top of Support Bracket Dimension

106 mm +/-0.5 mm

4.2 +/-0.2 in