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If the "rumble" is a vibration coming from the front, it could be warping of the front rotors. All 3 of my Gen 3 Expeditions had this issue and the rotors needed to be trued / cut early on in their life. Cut rotors, problem gone, even though the pads were fine.
Is this correct? Ford wants you to discard the rear slide pin bolts, but not the front ones?
I haven't looked at the manual but I don't discard everytime but I do put a little blue loctite on. I did once have a caliper bolt come loose.
Yes, they want you to discard the bolt for front pads too, not the slide pin. The rear motorcraft pads came with the two new bolts.
