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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

vibration at 35 mph

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Old Jan 2, 2010 | 10:36 AM
  #1  
jetedwards's Avatar
jetedwards
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From: kingston Ma
vibration at 35 mph

hello have a 94 f350 3.55s and i did a lot of front end work recently all new balljoints and wheel bearings and i one axle u joint. eveything was fine then i moved my rear 33" bfgs to the front and put a used one i bought in the back and and another brand new one in the back.i drove for a couple weeks with no vibes but last night and to day i have them around 35 and 40 mph any ideas what it might be its not like the death wobble which i had before i swapped tires.
 
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Old Jan 4, 2010 | 01:52 PM
  #2  
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alxsnmr
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From: St Louis
Three possiblities I can think of: one if you have a carrier bearing on the rear driveshaft, it may have gone bad, simply you have lost a wheel weight off one of the tires and need a rebalance, or if you have an E4OD the lock up clutch has failed in the torque converter.

Someone may have better advice for you than I though...
 
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Old Jan 7, 2010 | 08:03 AM
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jetedwards
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From: kingston Ma
thanks for your response. im thinking its not the converter because it seems to only do it in 4x4 i just want to make it through the snow season and work on it in the spring summer. ive done enough to the truck for this winter.
 
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Old Jan 7, 2010 | 08:05 AM
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jetedwards
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From: kingston Ma
i just reread my original question and i left out that pretty big detail that it is only when in 4x4
 
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