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Disc Brake System: Specifications GMC Sierra 2500 HD

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Brake Caliper Bleeder Screw12 N.m106 lb in
Brake Caliper Bracket Bolt, Front (JD9, JF3, JF7)175 N.m129 lb ft
Brake Caliper Bracket Bolt, Front (JH6, JH7)300 N.m221 lb ft
Brake Caliper Bracket Bolt, Rear (JD9)200 N.m148 lb ft
Brake Caliper Bracket Bolt, Rear (JH6)200 N.m148 lb ft
Brake Caliper Bracket Bolt, Rear (JH7)300 N.m221 lb ft
Brake Caliper Guide Pin Bolt, Front (JD9, JF3, JF7)100 N.m74 lb ft
Brake Caliper Guide Pin Bolt, Front (JH6, JH7)108 N.m80 lb ft
Brake Caliper Guide Pin Bolt, Rear (JD9)38 N.m28 lb ft
Brake Caliper Guide Pin Bolt, Rear (JH6, JH7)108 N.m80 lb ft
Brake Rotor Screw (JD9, JF3, JF7)12 N.m106 lb in
Brake Hose Fitting Bolt, Front (JD9, JF3, JF7)40 N.m30 lb ft
Brake Hose Fitting Bolt, Rear (JD9)40 N.m30 lb ft
Brake Hose Fitting Bolt, Front and Rear (JH6, JH7)40 N.m30 lb ft
Disc Brake Backing Plate Bolt (JH6, JH7)225 N.m166 lb ft

Fastener Tightening Specifications

Disc Brake Component Specifications

ApplicationSpecification
MetricEnglish
Front Brakes JF3, JF7
Rotor Discard Thickness*28.0 mm1.10 in
Rotor Minimum Allowable Thickness After Refinish28.0 mm1.10 in
Rotor Thickness (new)30.0 mm1.181 in
Rotor Maximum Allowable Lateral Runout0.05 mm0.002 in
Rotor Maximum Allowable Scoring1.50 mm0.059 in
Rotor Maximum Allowable Thickness Variation0.025 mm0.001 in
Front Brakes JD9, JH6, JH7
Rotor Discard Thickness*36.50 mm1.437 in
Rotor Minimum Allowable Thickness After Refinish37.0 mm1.457 in
Rotor Thickness (new)38.0 mm1.496 in
Rotor Maximum Allowable Lateral Runout0.13 mm0.005 in
Rotor Maximum Allowable Scoring1.50 mm0.059 in
Rotor Maximum Allowable Thickness Variation0.025 mm0.001 in
Rear Brakes JD9
Rotor Discard Thickness*18.0 mm0.709 in
Rotor Minimum Allowable Thickness After Refinish18.5 mm0.7282 in
Rotor Thickness (new)20.0 mm0.787 in
Rotor Maximum Allowable Lateral Runout0.25 mm0.010 in
Rotor Maximum Allowable Scoring1.50 mm0.059 in
Rotor Maximum Allowable Thickness Variation0.009 mm0.0004 in
Rear Brakes JH6
Rotor Discard Thickness*27.5 mm1.083 in
Rotor Minimum Allowable Thickness After Refinish28.0 mm1.102 in
Rotor Thickness (new)30.0 mm1.181 in
Rotor Maximum Allowable Lateral Runout0.13 mm0.005 in
Rotor Maximum Allowable Scoring1.50 mm0.059 in
Rotor Maximum Allowable Thickness Variation0.025 mm0.001 in
Rear Brakes JH7
Rotor Discard Thickness*28.5 mm1.122 in
Rotor Minimum Allowable Thickness After Refinish29.0 mm1.142 in
Rotor Thickness (new)30.0 mm1.181 in
Rotor Maximum Allowable Lateral Runout0.13 mm0.005 in
Rotor Maximum Allowable Scoring1.50 mm0.059 in
Rotor Maximum Allowable Thickness Variation0.025 mm0.001 in
* All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. After refinishing the rotor, replace any rotor that does not meet the minimum thickness specifications.

Disc Brake Component Specifications