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2003 Expedition rear differential problem
I recently bought a 2003 Ford Expedition and I'm having a strange vibration coming out of the rear differential. It almost feels/sounds like the rumble strips on the sides of highways. It seems to only happen in the morning or after it has been sitting for a long period of time. I notice it only when I make a sharp turn from a stop and accelerate. It goes away after about 5 minutes of driving.
The dealer has looked at it several times. Through vibration tests they have determined it is coming from the rear differential and are suspecting it is the limited slip. Upon the recommendation of Ford Engineering, they replaced the rear fluid with a different synthetic and asked me to drive it for another couple thousand miles to see if it makes any difference.
Anyone else having similar trouble?
-Ken
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