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Disc Brake System: Specifications GMC Terrain I

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Brake Caliper Bracket Bolt- Front190 N.m140 lb ft
Brake Caliper Bracket Bolt- Rear125 N.m92 lb ft
Brake Caliper Guide Pin Bolt- Front and Rear27 N.m20 lb ft
Brake Hose Fitting Bolt- Front40 N.m30 lb ft
Brake Hose Fitting Bolt- Rear52 N.m38 lb ft
Brake Rotor Screw- Front9 N.m80 lb in
Brake Rotor Screw- Rear10 N.m89 lb in

Fastener Tightening Specifications

Disc Brake Component Specifications

ApplicationSpecification
MetricEnglish
Brake Pads- Front and Rear
Minimum Thickness2.0 mm0.08 in
Front Disc Brake Rotor
Diameter321.00 mm12.64 in
Discard Thickness*27.00 mm1.06 in
Maximum Allowable Lateral Runout0.06 mm0.002 in
Maximum Allowable Scoring1.60 mm0.06 in
Maximum Allowable Thickness Variation0.025 mm0.001 in
Rear Disc Brake Rotor
Diameter303.00 mm11.93 in
Discard Thickness*18.40 mm0.72 in
Maximum Allowable Lateral Runout0.06 mm0.002 in
Maximum Allowable Scoring1.60 mm0.06 in
Maximum Allowable Thickness Variation0.025 mm0.001 in
*All disc brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. After refinishing the brake rotor, measure the brake rotor thickness. Replace any brake rotor which exceeds the discard specification.

Disc Brake Component Specifications