Slight Vibration at take-off

DaveBen

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YES, not getting the driveshaft back on the same way that it came off will cause it to vibrate.

Dave
 

dealer6

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DaveBen said:
YES, not getting the driveshaft back on the same way that it came off will cause it to vibrate.

Dave

thanks i'll try rotating it see if i can get rid of the vibration
scott
 

Kleetus

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I've never had a problem with that one... the flange should be balanced on it's own. Think about it. You'd have to get your entire driveline rebalanced every time you change a u joint or replaced a shaft. The Yoke, u joints and shafts are all balanced separately, so when they're all together, they're still balanced. Otherwise you'd have to change everything as a unit from the tranny flange to the flang on the rear axle.
 

Maxtor

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Balanced shaft.

In the past drive shafts were balanced as a whole unit. If you had a two piece shaft, before removing one you needed to mark both shafts so you could realign them properly, or you would get a vibration because of imbalance. I just called Ford, and they still balance both shafts together. They are not balanced separately. Before removing one shaft just use a sharpie pen and mark both shafts.
 

Kleetus

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right, if you have to split it at the u joint in the middle, like replacing a u joint. If you take it off at either flanged end, it doesn't make any difference which 4 bolt holes it goes back into.

Ya know, I just wonder if one of the houseplants that assembled my drive line payed attention to that... might be the whole problem, off by 90 degrees or so?
 

jwaring

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I was looking at the carrier bearing on my 06 today. It looks like the rubber bushing around the bearing itself has a webbed type design to it. I wonder if this adds to the vibration? Seems like a solid rubber bushing to hold the bearing would do more to support the shaft and keep it from vibrating on take-off. Is anyone aware of a solid replacement bushing??
Just curious...
Thanks!
 

cthehentz

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Ok, my question is how do'es one know when the carrier bearing is bad? My truck has just started to vibrate the past few days and when I went under the truck checking the U joints I noticed the carrier has some up and down play in it about 1/8" or so. Is this good, bad, normal, and if it's bad can I replace this myself or do I need to take it into the shop. I also have 57800 miles on my 03' 6.0 CC FX4.
 

jwaring

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The bushing around the bearing will allow it to move a little. I'd say an 1/8" is normal. I doubt your bearing is bad. As the rubber bushing around the bearing wears; it may loosen up and get a little “sloppier” causing more vibration. Although- I only have about 8,000 miles on my truck and it vibrates when first accelerating (which seems common).
 

cthehentz

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Cool deal, I think I may have found the source. I had new tires installed last month but just the past few days I have noticed this vibration. So last night I checked the tire preasure in all four and all of them were way off, so I set them to factory psi@ 60psi in the front and 70rear and today my steering wheel is off just a bit It pulls to the right. Now I will get the front end alignment done and I think that could be another reason for the vibration?
 

lvtitan

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lots of guys have that probelem, even with stock height superduties. drop the carrier bearing. i added a total of 1" shim to mine and it's noticeably less. i may add another 1/8-1/4"
 

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