Noise from front lockers - Ford Powerstroke Diesel Forum
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post #1 of 1 Old 02-11-2013, 06:06 PM Thread Starter
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Noise from front lockers

My 08 has an esof system but when I manually lock the hubs or just shift on the fly I start to get this squeaking sound. In 4wheel high around 40+ mph it's a combination of light grinding/humming sound and squealing. After unlocking them and being in 2wd, it will keep squealing for a short time. When the hubs are in auto and 4wheel high is on, there is only a light squealing noise. Dose this just sound like the hubs need to be cleaned and re greased? Or is it more?

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