Disc Brake Component Specifications (J55)

WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Application	Specification
Application	Metric	English
Front Brake Pads
Taper	0.15 mm	0.006 in
Front Brake Rotors
Rotor Diameter	330.0 mm	12.99 in
Rotor Discard Thickness*	36.0 mm	1.417 in
Rotor Maximum Allowable Assembled Lateral Runout	0.05 mm	0.002 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Rotor Thickness (New)	38.0 mm	1.496 in
Rear Brake Pads
Taper	0.15 mm	0.006 in
Rear Brake Rotors
Rotor Diameter	325.0 mm	12.79 in
Rotor Discard Thickness*	18.50 mm	0.728 in
Rotor Maximum Allowable Assembled Lateral Runout	0.05 mm	0.002 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Rotor Thickness (New)	20.0 mm	0.787 in
* All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. The brake rotors are coated with a corrosion inhibitor and must not be refinished.