Had the same noise start at 80k miles. Took it to a local differential shop. A little over $1,000, new pinion bearing and noise gone. The mechanic said this is common on all F-150s and the bearings are too small for the application. He also said it would probably go along time before failure...
Did you ever figure this out. You are describing exactly what I am experiencing. 2018 just started making the noise at 85,000 miles. For me it is a whine that changes pitch depending on the speed and really noticeable coming to a stop. No change between shifting gears, same sound in 4A. Has it...
I ran one for a while. Worked okay, a bit buggy/laggy but usable. My APIM went out after after running the magic box for months. I don’t think it’s related, but I haven’t used the magic box after replacing the APIM just in case.
Is there a safe place to lift from the control arm. Keeping the suspension under load? If so, is there a place to put a jack stand after the tires are off the ground?
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