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.
2009 Ford Mustang V8-5.4L SCFACTORY OEM SERVICE PROCEDURE
System Specifications
Rear Axle 4.25 pints (2.0 L)
Note: Rear axle lubricants do not need to checked or changed unless a leak is suspected, service is required or the axle assembly has been submerged in water. The axle lubricant should be changed any time the rear axle has been submerged in water, using SAE 75W-140 High Performance rear axle lube, meeting Ford specification VSL-M2C192-A.
Fill 1/4 - 9/16 in. (6 - 14 mm) below bottom of fill hold. Add 4 oz. (118 ml) of Additive Friction Modifier C3AZ-19B546-A or equivalent meeting Ford specification EST-M2C118-A for complete refill of Traction-Lok axles.
Factory Service Tools
Use the Manual With the Right Hardware
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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.