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Drum Brake System: Specifications Chevrolet Sonic I

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Bleeder Valve Bolt9 N.m80 lb in
Brake Drum Bolt9 N.m80 lb in
Brake Pipe Fitting18 N.m13 lb ft
Rear Brake Cylinder Bolt10 N.m89 lb in

Fastener Tightening Specifications

Drum Brake Component Specifications

ApplicationSpecification
MetricEnglish
Brake Drum Diameter - Discard231.0 mm9.094 in
Brake Drum Diameter - New230.0 mm9.055 in
Brake Drum Maximum Allowable Radial Runout0.04 mm0.002 in
Brake Drum Maximum Allowable Scoring0.50 mm0.02 in
Brake Drum Maximum Diameter After Refinish230.75 mm9.085 in
Brake Shoe Lining Minimum Thickness1.40 mm0.055 in
Brake Shoe Lining Thickness - New5.00 mm0.197 in
Brake Shoe Lining-to-Drum Clearance0.40-0.90 mm0.016-0.035 in

Drum Brake Component Specifications