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.
Axle Ratio & Identification
Rear axle identification is stamped on forward side of right axle tube. The first 3 digits indicate rear axle ratio, the next digit indicates axle assembly build source code, the next 3 digits indicate the day built in Julian Date form and the last digit identifies the shift build (first or second).
Front axle identification is located on tag attached near axle tube.
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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.