Vibration on high speed deceleration
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[/quote]
My SOS dampers caused a hood vibration and noise that I thought was very serious. Turned out to require grease.
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It is a strange issue you have and I'm betting it is something so settle that it would be easily missed. Something just tweaked enough to cause a high speed vibration but be gone at lower speed. You are very welcome to send the rear back for inspection. I can go through it to be sure everything is as it should be. If I find ANYthing I would think could cause your issue I will take care of it. No charge for the inspection or any adjustments even if I find nothing wrong 
Just hope I'm not killing another diff
Thanks for the help, assuming it IS the diff and considering it's not vibrating at lower speeds, would I be okay just not driving at that speed for now? Wouldn't want to damage it further if possible.
Joined: Jun 2004
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Originally Posted by S2KPUDDYDAD' timestamp='1359051989' post='22289662
It is a strange issue you have and I'm betting it is something so settle that it would be easily missed. Something just tweaked enough to cause a high speed vibration but be gone at lower speed. You are very welcome to send the rear back for inspection. I can go through it to be sure everything is as it should be. If I find ANYthing I would think could cause your issue I will take care of it. No charge for the inspection or any adjustments even if I find nothing wrong
Just hope I'm not killing another diff
Thanks for the help, assuming it IS the diff and considering it's not vibrating at lower speeds, would I be okay just not driving at that speed for now? Wouldn't want to damage it further if possible.
If you have no noise and no vibrations at under 80 then you should be fine. If the car drives and sounds normal at all other speeds you should be fine.
Joined: Dec 2007
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Bump from the dead. I've got the exact same issue. Deep / rumble vibration above 90mph while under very light load. It goes away if I give it gas or take my foot out of it entirely.
I've got a stock diff so I don't think the diff was the OPs problem. I do however have a lightweight driveshaft on the car from the previous owner so I'm thinking it could be a balance issue with the flanges on the diff / tranny and the shaft itself.
Anyone else with aftermarket driveshafts or after swapping out driveshafts run into high speed vibrations? Anyone have an idea on how to go about trouble shooting this?
I've got a stock diff so I don't think the diff was the OPs problem. I do however have a lightweight driveshaft on the car from the previous owner so I'm thinking it could be a balance issue with the flanges on the diff / tranny and the shaft itself.
Anyone else with aftermarket driveshafts or after swapping out driveshafts run into high speed vibrations? Anyone have an idea on how to go about trouble shooting this?
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