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vibrations at speed with poly trans mount

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Old Aug 25, 2010 | 12:32 PM
  #41  
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what do you mean rotated the wrong way? That matters? lol....I think i am going to get an alignment so I could get my pinion angle corrected the right way because ive been trying and I cant seem to get it.

Arent SS's an inch lower from the factory than z28s? Thats what i thought i heard once.....would that affect the pinion angle if it was set to 0 for a z28 by UMI because it still vibrated when it was set by them after the install.
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Old Aug 25, 2010 | 01:05 PM
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Driveshaft's are balanced with small weights attached to them like wheels. The driveshaft can be installed two ways. Both ways are 180º rotated apart from each other.
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Old Aug 26, 2010 | 06:11 AM
  #43  
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Originally Posted by HoLLo
Driveshaft's are balanced with small weights attached to them like wheels. The driveshaft can be installed two ways. Both ways are 180º rotated apart from each other.
Yeah i knew they were balanced with the weights, i just didnt know that it made a difference how the driveshaft was installed.

I also have an update...i narrowed the vibration down from 70-86 mph by tweaking the pinion angle again...im pretty sure i left it at -1....I have to tweak it a little more hopefully that solves the problem.
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Old Nov 27, 2012 | 07:49 AM
  #44  
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http://m.youtube.com/#/watch?v=bv-VM...%3Dbv-VMwTpREc

Is this similar to your vibration I've been chasing this one for about a year now built t56 moser 12 bolt spohn drive shaft. And I have a poly Trans mount
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Old Jul 22, 2020 | 04:16 PM
  #45  
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driveshaft is your problem
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