Vibration in 4x4 when on the gas... help!

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Old 10-07-2007, 09:02 PM
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Vibration in 4x4 when on the gas... help!

I noticed after my procomp was put in I have a vibration in 4 wheel high - not 2wd. When I push on the gas from a dead stop I get a crazy vibration in the gas pedal and the whole truck for that matter. It doesn't matter how hard I push on it, its there. It goes away at about 30 mph and beyond.

Procomp said I needed to buy a new driveshaft - their driveshaft for $500. So I took it to a shop and they checked it out. The front driveshaft was way out of balance so I had it balanced. Its still there. They said they usually see some vibrations at high speeds. My vibrations are at takeoff up to 30 mph.

Any help on this would be appreciated. I am baffled.

By the way, before the lift everything was golden.
 
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Old 10-07-2007, 09:08 PM
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They didn't re key the front driveshaft, make them fix it.
 
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Old 10-08-2007, 08:17 AM
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What do you mean re key?
 



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