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 509 (REAR DRIVE AXLE)
2008 Chevrolet HHR LT, 2.4 P, Automatic
Section 509 (Rear Drive Axle)
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Section 509 (Rear Drive Axle)
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.
- Specifications
- Component Locator
- Diagnostic Information and Procedures
- Symptoms - Locking/Limited Slip Rear Axle
- Symptoms - Rear Differential Carrier
- Symptoms - Rear Drive Axle
- Rear Drive Axle Noises
- Noisy in Drive
- Noisy When Coasting
- Intermittent Noise
- Constant Noise
- Noisy on Turns
- Wheel Bearing Wear - Rear Drive Axle (Straight)
- Rear Axle Lubricant Leak Diagnosis
- Locking Differential Diagnosis
- Locking Rear Axle Does Not Lock
- Locking Rear Axle Locks in Turns
- Locking Rear Drive Axle Chatters in Turns
- Noise in Addition to Normal Clutch Engagement
- Repair Instructions
- Rear Axle Lubricant Level Inspection (8.0 Inch Axle)
- Rear Axle Lubricant Level Inspection (8.6 Inch Axle)
- Differential Oil Replacement (8.0 Inch Axle)
- Differential Oil Replacement (8.6 Inch Axle)
- Vent Hose Replacement
- Rear Axle Housing Cover and Gasket Replacement
- Rear Axle Shaft Replacement
- Rear Axle Shaft Seal and/or Bearing Replacement
- Drive Pinion Flange/Yoke and/or Oil Seal Replacement
- Drive Pinion and Ring Gear Replacement
- Differential Drive Pinion Gear Bearing Replacement (8.0 Inch Axle)
- Differential Drive Pinion Gear Bearing Replacement (8.6 Inch Axle)
- Differential Replacement
- Differential Bearing Replacement (8.0 Inch Axle)
- Differential Bearing Replacement (8.6 Inch Axle)
- Rear Axle Replacement
- Rear Axle Housing Replacement
- Bearings Inspection
- Differential Inspection
- Pinion and Ring Gear Inspection
- Rear Axle Housing Inspection
- Shims Inspection
- Pinion Depth Adjustment (8.0 Inch Axle)
- Pinion Depth Adjustment (8.6 Inch Axle)
- Differential Carrier Bearing Preload Adjustment (8.0/8.6 Inch Axles)
- Backlash Adjustment
- Gear Tooth Contact Pattern Inspection
- Notes
- Gear Tooth Nomenclature
- Adjustments Affecting Tooth Contact
- Backlash Adjustment
- Pinion Depth Adjustment
- Testing Procedure
- Correct Contact Pattern
- Drive Side Heel - Coast Side Toe Contact Pattern
- Drive Side Toe - Coast Side Heel Contact Pattern
- Drive Side Heel - Coast Side Heel Contact Pattern
- Drive Side Toe - Coast Side Toe Contact Pattern
- High Flank Contact Pattern
- Low Flank Contact Pattern
- Locking Differential Disassemble
- Locking Differential Clutch Disc Assembly Disassemble (8.0 Inch Axle)
- Locking Differential Clutch Disc Assembly Disassemble (8.6 Inch Axle)
- Locking Differential Cam Unit Disassemble
- Locking Differential Cleaning and Inspection
- Locking Differential Cam Unit Assemble
- Locking Differential Clutch Disc Assembly Assemble (8.0 Inch Axle)
- Locking Differential Clutch Disc Assembly Assemble (8.6 Inch Axle)
- Locking Differential Adjustment
- Locking Differential Assemble
- Description and Operation
- Special Tools and Equipment
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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.