There is not any maintenance that you can really do to the front unit-hub bearings. However, I have packed them by using a standard grease gun and pumping grease into the ABS sensor hole. Does it do any good? Who knows. I just do it for the peace of mind.
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Tuning, flashing, burning chips, and repairing all aspects of 7.3L Powerstrokes.
SEVEN 7.3L-powered vehicles in the driveway. Two didn't come that way from the factory!
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