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 MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSIS (SINGLE PAGE)DRIVELINES & AXLESDIFFERENTIALS & DRIVE AXLESREAR DRIVE AXLE
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Rear Drive Axle
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Rear Drive Axle
- Specifications
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Locking/Limited Slip Rear Axle
- Diagnostic Starting Point - Rear Drive Axle
- Symptoms - Locking/Limited Slip Rear Axle
- 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)
- Wheel Bearing Wear - Rear Drive Axle (Tapered)
- 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 (8.6 Inch Axle)
- Rear Axle Lubricant Level Inspection (9.75, 10.5 and 10.75 Inch Axle)
- Rear Axle Lubricant Replacement (8.6 Inch Axle)
- Rear Axle Lubricant Replacement (9.75, 10.5 and 10.75 Inch Axles)
- Vent Hose Replacement
- Rear Axle Housing Cover and Gasket Replacement (8.6 Inch Axle)
- Rear Axle Housing Cover and Gasket Replacement (9.75, 10.5 and 10.75 Inch Axles)
- Rear Axle Shaft Replacement (8.6, 9.75 Inch Axle WO/RPO JL4)
- Rear Axle Shaft Replacement (8.6 Inch Axle W/RPO JL4)
- Rear Axle Shaft Replacement (9.75 Inch Axle W/RPO JL4)
- Rear Axle Shaft Seal and/or Bearing Replacement
- Rear Axle Shaft and/or Gasket Replacement
- Rear Axle Hub, Bearing, Cup, and/or Seal Replacement
- Drive Pinion Flange/Yoke and/or Oil Seal Replacement (8.6 Inch Axle)
- Drive Pinion Flange/Yoke and/or Oil Seal Replacement (9.75, 10.5 and 10.75 Inch Axles)
- Drive Pinion and Ring Gear Replacement (8.6 Inch Axle)
- Drive Pinion and Ring Gear Replacement (9.75, 10.5 and 10.75 Inch Axles)
- Drive Pinion Bearings Replacement (8.6 Inch Axle)
- Drive Pinion Bearings Replacement (9.75, 10.5 and 10.75 Inch Axles)
- Differential Replacement (8.6 Inch Axle)
- Differential Replacement (9.75, 10.5 and 10.75 Inch Axles)
- Differential Side Bearings Replacement
- Rear Axle Replacement
- Rear Axle Housing Replacement (w/o VSES)
- Rear Axle Housing Replacement (w VSES)
- Differential Overhaul
- Bearings Inspection
- Differential Inspection
- Pinion and Ring Gear Inspection
- Rear Axle Housing Inspection
- Shims Inspection
- Pinion Depth Adjustment (8.6 Inch Axle)
- Pinion Depth Adjustment (9.75, 10.5 and 10.75 Inch Axles)
- Differential Carrier Bearing Preload Adjustment (8.6 Inch Axle)
- Differential Carrier Bearing Preload Adjustment (9.75, 10.5 and 10.75 Inch Axle)
- Wheel Bearing Adjustment
- Backlash Adjustment (8.6 Inch Axle)
- Backlash Adjustment (9.75, 10.5 and 10.75 Inch Axles)
- Gear Tooth Contact Pattern Inspection
- Notes
- Drive Pinion and Ring Gear Identification
- Gear Tooth Nomenclature
- Adjustments Affecting Tooth Contact
- 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 (8.6 Inch, 9.75 Inch Axles)
- Locking Differential Disassemble (10.5 Inch Axle)
- Locking Differential Clutch Disc Assembly Disassemble (8.6 Inch Axle)
- Locking Differential Clutch Disc Assembly Disassemble (9.75 Inch Axle)
- Locking Differential Clutch Disc Assembly Disassemble (10.5 Inch Axle)
- Locking Differential Cam Unit Disassemble (8.6 Inch Axle)
- Locking Differential Cam Unit Disassemble (9.75 Inch Axle)
- Locking Differential Cam Unit Disassemble (10.5 Inch Axle)
- Locking Differential Cleaning and Inspection
- Locking Differential Cam Unit Assemble (8.6 Inch Axle)
- Locking Differential Cam Unit Assemble (9.75 Inch Axle)
- Locking Differential Cam Unit Assemble (10.5 Inch Axle)
- Locking Differential Clutch Disc Assembly Assemble (8.6 Inch Axle)
- Locking Differential Clutch Disc Assembly Assemble (9.75 Inch Axle)
- Locking Differential Clutch Disc Assembly Assemble (10.5 Inch Axle)
- Locking Differential Adjustment (8.6 Inch Axles)
- Locking Differential Adjustment (9.75 Inch Axles)
- Locking Differential Adjustment (10.5 Inch Axles)
- Locking Differential Assemble (8.6 Inch, 9.75 Inch Axles)
- Locking Differential Assemble (10.5 Inch Axle)
- Description and Operation
- Special Tools and Equipment
RENDER: 1.0x
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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.