06 F250 vibration / Shudder / Light shaking under acceleration - Ford Powerstroke Diesel Forum
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Old 10-07-2010, 06:32 AM
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06 F250 vibration / Shudder / Light shaking under acceleration

Hello all! I recently noticed a vibration / Shudder / Light shaking under acceleration. My truck has 94k on it. New short block at 56k, Suncoast superduty rebuild kit with new torque converter, input shaft, extra filter about 10k ago. Minus a few problems over the years the truck has been very good to me. I have searched a lot of different forums before submitting to posting for help (didn't want to waste people's time)

So far what I have come up with is a couple different scenarios:

1. Rear end going
2. Carrier bearing shim(s)
3. Bad U-joint(s)
4. Drive shaft not balanced

I'm in real estate and construction sooooo....money isn't what it used to be!!! I appreciate any and all feedback for diagnoses and correction!

Thanks in advance!
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Old 10-07-2010, 06:34 AM
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I forgot to add it is progressively getting worse and I am scared to drive it right now!
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Old 10-07-2010, 06:36 AM
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Send a message via Yahoo to Dave
Probably a Ujoint
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Old 10-07-2010, 06:49 AM
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Thanks Dave, I just got back in from checking them. while trying to turn the drive shaft the whole thing moved!!! The drive shaft goes thru this metal piece with rubber seals on it. The whole thing moves a 1/4" in each direction. I'm posting before researching further. I believe it's the carrier bearing...is there a tech write up on the R&R of that?
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Old 10-25-2010, 05:16 PM
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Send a message via AIM to BennyLumpkin
just go to FORD or somewhere you can buy good parts(ford usually beats aftermarket price on drivetrain stuff) and buy one....its a slip joint....just unbolt it, drop it down...you may have to take the shaft off at the rear to pull it far enough.....pull it apart(its splined), and replace it....pretty straight forward and easy.....
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