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Home >> Lincoln >> 2019 >> Navigator Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 222 (Wheel Hubs And Bearings - Full Floating Axle - Vehicles With: DANA M275 DANA M300) >> Diagnosis And Testing >> Wheel Hubs and Bearings >> Analysis of Leakage

Analysis of Leakage

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Clean up the leaking area enough to identify the exact source. A wheel hub leak can be caused by worn or damaged hub seals, worn or damaged axle shaft O-ring or a plugged differential vent.

A plugged rear differential housing vent can cause excessive wheel hub seal wear due to internal pressure buildup.

Verify the differential fluid level is at the correct level. REFER to: Differential Fluid Level Check . REFER to: Differential Fluid Level Check .