Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 505 (DISC BRAKE SYSTEM)SPECIFICATIONSDISC BRAKE COMPONENT SPECIFICATIONS
2008 Chevrolet HHR LT, 2.4 P, Automatic
Disc Brake Component Specifications
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Disc Brake Component Specifications
WARNING: This page is about a different car, the 2011 GMC Canyon and 2011 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
General Specifications
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Rotor Minimum Thickness * | 27.5 mm | 1.08 in |
| Rotor Thickness (new) | 29.0 mm | 1.14 in |
| Rotor Maximum Allowable Assembled Lateral Runout | 0.050 mm | 0.002 in |
| Rotor Maximum Allowable Scoring | 1.50 mm | 0.059 in |
| Rotor Maximum Allowable Thickness Variation | 0.050 mm | 0.002 in |
| * All brake rotors have a minimum thickness 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. | ||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.