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post #1 of (permalink) Old 10-04-2006, 08:01 AM
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Vibration problem...(2004 Rubicon)


Model: 2004 Jeep Wrangler Rubicon automatic transmission
(with 4" suspension lift up)

Tom wood's 1350 rear CV drive shaft (New for the Jeep Rubicon) is installed.

When it speeds around 45~55 mph with 1,500 rpm,

there is a lot of vibration.

I tried adjusting the U joint angle at the differential

but couldn't fix the problem.

Do you have any suggestions?(Help me!!)

Thank you.
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post #2 of (permalink) Old 10-04-2006, 08:17 AM
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Re: Vibration problem...(2004 Rubicon)

Please explain the procedure you took to fix the drive line angle at the differential.
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post #3 of (permalink) Old 10-04-2006, 09:39 AM
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Re: Vibration problem...(2004 Rubicon)

I suggest you check ALL the U-joints. Especially the ones in the front Drive shaft. If the front CV joint goes bad it can easily take out your T-case. I also suggest pulling the drive shafts to do a thorough check, you can't tell for sure just by looking and feeling with the shaft's in place.
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post #4 of (permalink) Old 10-04-2006, 10:24 AM
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Re: Vibration problem...(2004 Rubicon)

The CV joint at the transfer case takes all of the angle. The pumpkin should be pointing right at the xfer case...this makes the driveshaft straight from the pumpkin to the backside of the cv joint.

If you have any angle at the u-joint at the pumpkin, that is the cause (maybe) of your vibration.

One last thing to check....make sure the ds length is right. The sip joint on the ds should have at least 50% contact...if the slip joint is extended too far, that will also cause vibration because the ds is starting to wobble.
post #5 of (permalink) Old 10-05-2006, 10:55 AM
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Re: Vibration problem...(2004 Rubicon)

I'll 2nd the driveshaft as the cause.
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post #6 of (permalink) Old 10-05-2006, 06:36 PM
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Re: Vibration problem...(2004 Rubicon)

A friend got the Tom Woods CV driveshaft - the one that retains the vibration damper on the T-case. Vibration city!
We switched it with mine, A CV also, but not a Tom Woods. It doesn't use the vibration damper - the vibration went away!

He called Tom Woods, got them to take it back and get him one that doesn't use the "vibration Damper."

It solved it!

Tom Woods makes excellent products, but apparently the slight extra length made the difference.
Otherwise "go figure."
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