4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

driveshaft vibration?

Old 09-11-2006, 05:07 PM
  #1  
Quicktime_GT
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Default driveshaft vibration?

Hey.. I recently installed 4.10 gears.... now i have a small vibration, its nothing bad just a tremble at about 3000 RPM in 5th. It is now at about 90 MPH on up, where it use to be at about 120MPH.

Could this be a driveshaft vibration, and would replacing it with an aftermarket alluminum one likely make this better or worse?
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Old 09-11-2006, 05:51 PM
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Fryguy22
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Default RE: driveshaft vibration?

it probably has to do with the recent install of the gears. What brand gears are they?
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Old 09-14-2006, 10:36 PM
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Quicktime_GT
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Default RE: driveshaft vibration?

FRPP.. I took the weight that hangs off the differential off... could this possibly be a vibration dampener ... I figured it was to add weight on the back of the diff to prevent wheel hop a little... but the vibration dampening is a thought
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Old 09-15-2006, 03:11 AM
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Default RE: driveshaft vibration?


ORIGINAL: apc fo life

FRPP.. I took the weight that hangs off the differential off... could this possibly be a vibration dampener ... I figured it was to add weight on the back of the diff to prevent wheel hop a little... but the vibration dampening is a thought


You are correct.

This is a pretty common thing when installing steep gears like 4.10's. A aluminum DS will help ! You may also try rotating the DS 180 degrees and see if that helps.
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