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| 1997 to 2003 F-150 4.2L, 4.6L, and 5.4L equipped F-150s |
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#1
Mon, September 28th, 2009, 08:52 PM
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Rear end vibration on a lifted truck.
I have a 7.5" Fabtech lift on my truck with a 5" block in the rear. Before the lift I could drive it at any speed without the vibration. Since the lift and the 4.56 gears I have a vibration at about 80 mph. I've had the gears replaced once because of a faulty ring and it still does it. Is this going to be the norm or is it something that can be corrected? Maybe the u-joint or out of balance driveline? Any thoughts?
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