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.
2010 GMC Savana 3500 V8-6.0LFACTORY OEM SERVICE PROCEDURE
Differential Inspection
Differential Inspection
* Check the pinion gear shaft for unusual wear.
* Check the pinion and the side gear teeth for wear, cracks, scoring and spalling.
* Check the thrust washers for wear.
* Check the fit of the side gears in the differential case and on the axle shafts.
* Check the differential case for cracks and scoring and replace all of the worn parts as necessary.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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