3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

unknown vibe?

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Old Mar 6, 2005 | 01:06 PM
  #1  
The Domie's Avatar
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unknown vibe?

I have noticed an annoying vibe as I come up through 67 mph under power.
I coasted the truck down a long hill in neutral going between 65 and 70 mph and there was no vibe.
Is this the same drivetrain vibe I keep reading about or something different?
Seems that the ones I read about are all the time, at that speed, not just under power?

The Domie
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Old Mar 6, 2005 | 01:35 PM
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Nope. That's normal engine buzz. I wish that's all my '03 had.
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Old Mar 14, 2005 | 09:20 PM
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moving this to the front.
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Old Mar 15, 2005 | 08:29 PM
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I rotated my tires a couple of weeks ago. This was the first time that I actually did the "Modified X" instead of just switching fronts to rears and vice-versa. Immediately I got a vibration at 70 mph that I never had before. I switched the two front tires around and the vibration stopped. Go figure.......
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Old Mar 16, 2005 | 05:10 PM
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I've got that vibe, underpower from approx 55 - 70 MPH especially if it locks up in OD.

I believe it has to do with the rear carrier bearing and position/angle of the u-joints. I had the TSB for shudder on take off done, well that was cured but the vibe moved to that 55 - 70 MPH range now.

I'm going to look into a custom solution for the driveshaft because I know any dealer I go to will be incapable of fixing and/or diagnosing this issue. It's not terrible but it is noticeable.

Eric
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