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Disc Brake System: Specifications Cadillac STS I facelift

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Brake Caliper Bleeder Valve14 N.m124 lb in
Brake Caliper Bolt - Front (J56)130 N.m96 lb ft
Brake Caliper Bolt - Rear (J56)120 N.m88 lb ft
Brake Hose Fitting Bolt - Front and Rear (JE5, JL9)50 N.m37 lb ft
Brake Hose Fitting Bolt - Front and Rear (J56)34 N.m25 lb ft
Brake Rotor Screw14 N.m124 lb in
Front Brake Caliper Bracket Bolt (JE5, JL9)130 N.m96 lb ft
Front Brake Caliper Pin Bolt (JE5)34 N.m25 lb ft
Front Brake Caliper Pin Bolt (JL9)63 N.m46 lb ft
Rear Brake Caliper Bracket Bolt (JE5, JL9)120 N.m88 lb ft
Rear Brake Caliper Pin Bolt (JE5, JL9)60 N.m44 lb ft

Disc Brake Component Specifications (JE5, JL9)

ApplicationSpecification
MetricEnglish
Front Brake Pads
Taper0.15 mm0.006 in
Front Brake Rotor JE5
Rotor Diameter323.0 mm12.71 in
Rotor Minimum Thickness*30.7 mm1.209 in
Rotor Maximum Allowable Assembled Lateral Runout0.06 mm0.002 in
Rotor Maximum Allowable Scoring1.50 mm0.059 in
Rotor Maximum Allowable Thickness Variation0.025 mm0.001 in
Rotor Thickness (New)32.20 mm1.267 in
Front Brake Rotor JL9
Rotor Diameter303.0 mm11.929 in
Rotor Minimum Thickness*30.7 mm1.209 in
Rotor Maximum Allowable Assembled Lateral Runout0.06 mm0.002 in
Rotor Maximum Allowable Scoring1.50 mm0.059 in
Rotor Maximum Allowable Thickness Variation0.025 mm0.001 in
Rotor Thickness (New)32.20 mm1.267 in
Rear Brake Pads
Taper0.15 mm0.006 in
Rear Brake Rotor JE5
Rotor Diameter320.0 mm12.598 in
Rotor Minimum Thickness*24.0 mm0.944 in
Rotor Maximum Allowable Assembled Lateral Runout0.06 mm0.002 in
Rotor Maximum Allowable Scoring1.50 mm0.059 in
Rotor Maximum Allowable Thickness Variation0.025 mm0.001 in
Rotor Thickness New26.0 mm1.023 in
Rear Brake Rotor JL9
Rotor Diameter298.0 mm11.732 in
Rotor Minimum Thickness*24.0 mm0.944 in
Rotor Maximum Allowable Assembled Lateral Runout0.06 mm0.002 in
Rotor Maximum Allowable Scoring1.50 mm0.059 in
Rotor Maximum Allowable Thickness Variation0.025 mm0.001 in
Rotor Thickness New26.0 mm1.023 in
* All brake rotors have a minimum thickness dimension cast into them. Replace any rotor that is worn or machined below this specification.

Disc Brake Component Specifications (J56)

ApplicationSpecification
MetricEnglish
Front Brake Pads
Taper0.15 mm0.006 in
Front Brake Rotor
Rotor Diameter355.00 mm13.976 in
Rotor Discard Thickness30.00 mm1.181 in
Rotor Maximum Allowable Assembled Lateral Runout0.06 mm0.002 in
Rotor Maximum Allowable Scoring1.50 mm0.059 in
Rotor Maximum Allowable Thickness Variation0.025 mm0.001 in
Rotor Minimum Thickness After Refinishing31.0 mm1.220 in
Rotor Thickness New32.00 mm1.259 in
Rear Brake Pads
Taper0.15 mm0.006 in
Rear Brake Rotor
Rotor Diameter365.00 mm14.370 in
Rotor Discard Thickness26.00 mm1.023 in
Rotor Maximum Allowable Assembled Lateral Runout0.06 mm0.002 in
Rotor Maximum Allowable Scoring1.50 mm0.059 in
Rotor Maximum Allowable Thickness Variation0.025 mm0.001 in
Rotor Minimum Thickness After Refinishing27.00 mm1.062 in
Rotor Thickness New28.00 mm1.102 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 specification.