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Prep Your 4x4 Checking Differential Fluid

Differential fluid will often have a metallic color to it as a result of the metal gears constantly meshing inside the differential. Not to worry, this is normal wear, but you do want to inspect for small pieces of metal, indicating that there might be a broken tooth, and also carefully look at the gears for visible damage like cracks.
Vehicle Maintenance - Prep Your 4x4 - Moab Tech

Differential fluid will often have a metallic color to it as a result of the metal gears constantly meshing inside the differential. Not to worry, this is normal wear, but you do want to inspect for small pieces of metal, indicating that there might be a broken tooth, and also carefully look at the gears for visible damage like cracks.  View Related Article

 

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