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vibration at 120km/h

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Old Sep 10, 2007 | 01:30 PM
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one fast ss's Avatar
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From: sudbury ontario
Default vibration at 120km/h

i duno what it is but at 120km/h i feel a vibration in the drivetrain. but as soon as i got a little past the 120 mark it goes away. has anyone ever experienced this? its a 2004 ss silverado...i put a 4l80e in it with new driveshaft..so i duno what it could be.
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Old Sep 10, 2007 | 04:04 PM
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it could either be the driveshafts, converter or your tires need to be balanced. where did you get the 80e conversion kit?
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Old Sep 10, 2007 | 09:16 PM
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i got the kit from speed engineering
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Old Sep 12, 2007 | 09:29 PM
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Originally Posted by mwalls54
it could either be the driveshafts, converter or your tires need to be balanced. where did you get the 80e conversion kit?
thats to fast for a balance if u when to a tire shop and said that they would laugh atleast were i work at they would
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Old Sep 13, 2007 | 08:50 PM
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Originally Posted by ss04flores
thats to fast for a balance if u when to a tire shop and said that they would laugh atleast were i work at they would

120kmh is in the low 70s mph and they normally balance tires around 65mph
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Old Sep 14, 2007 | 12:02 PM
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Have you tried Road Force Balancing? If it is tire related, this could very well help the problem.
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