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 MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 300 (DIFFERENTIAL)REMOVAL & INSTALLATIONDIFFERENTIAL ASSEMBLYINSTALLATION
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M
Differential Assembly: Installation
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Installation
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- Install the torque tube to the differential. See TORQUE TUBE ASSEMBLY . Install the rear differential and torque tube assembly to the suspension cradle. Simultaneously guide the left axle shaft onto the differential output shaft while positioning the differential assembly to the suspension cradle. Place an adjustable support under the torque tube. Ensure that the left axle shaft is fully engaged to the differential output shaft. Install the differential carrier mounts, washers, bolts and nuts to the differential.
- Tighten the differential carrier-to-cradle mounting bolts to specification. See TORQUE SPECIFICATIONS . Install the torque tube bracket-to-body bolts. Tighten the torque tube bracket-to-body bolts to specification. See TORQUE SPECIFICATIONS . Tighten the torque tube-to-bracket through-bolt and nut to specification. See TORQUE SPECIFICATIONS .
- Install the front drive shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article under DRIVELINE/AXLE. Install the right axle shaft. See appropriate AXLE SHAFTS - REAR article in DRIVELINE/AXLE. Install the right rear tire and wheel assembly. Tighten bolts to specifications. See TORQUE SPECIFICATIONS . Install the differential drain plug and gasket to the differential. Tighten the drain plug to specification. See TORQUE SPECIFICATIONS .
- Remove the differential fill plug. See Figure . Fill the axle with synthetic gear oil. Inspect the differential oil level to ensure it is even with, to no lower than, 0.25" (6 mm) below the opening of the fill hole. See LUBRICATION . Fill differential as necessary. Install the differential fill plug and gasket. Tighten the fill plug to specifications. See TORQUE SPECIFICATIONS .
- Connect the electrical connector to the clutch pump check valve. Remove the adjustable support from the torque tube. Lower the vehicle. Operate the vehicle making tight left, then right turns in order to engage the all-wheel-drive system and distribute the gear oil throughout the differential. Raise and support the vehicle. Remove the differential fill plug. Fill the axle with synthetic gear oil. Inspect the differential oil level to ensure it is even with, to no lower than, 0.25" (6 mm) below the opening of the fill hole. Install the differential fill plug and gasket. Tighten the fill plug to specification. See TORQUE SPECIFICATIONS . Lower the vehicle.
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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.