2004 Ford F150 Rear end shimmy/vibration

2004 FORD F-150
85,000 MILES • V8 • 4WD • AUTOMATIC
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PAUL BAKER
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  • 1 POST
The rear end starts to shimmy/vibrate whether in 2 wheel drive or 4 wheel high. The shimmy comes and goes. I have all new tires(factory specs). This truck has the 9.75 rear end with 3.73 gears and limited slip.
Where do you think there is a problem: u -joint, brake caliper hanging up, wheel bearing going out, limited slip clutch pac not engaging/disengaging, ?
Again, this substantial vibration mysteriously comes and goes. No signs of leaks anywhere. I am stumped. Thanks for your ideas.
Dec 2, 2007 at 7:10 PM
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MIKE H R
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  • 3,094 POSTS
does the truck have the original enclosed drive shaft? on the 2004 my wifes drive shaft was enclosed. since it was under warrentee we had it checked by a dealer. the told her there was nothing wrong with it, so we took it to another. we found that there had been a buletine on the driveshaft
they replaced the drive shaft and rear end.
Dec 4, 2007 at 9:27 AM