ok, at high speeds my dash shakes

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Aug 13, 2001 | 12:31 PM
  #1  
it seems at about 85-90mph my dash will start to shake pretty violoently, my steel wheel usually just vibrates and thats fine, but my dash really bothers me. does anyone else have this problem and do you know what i could do to resolve it?
-pat

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Red" TARGET=_blank>http://wsphotofews.excite.com/038/jk/Om/YE/gX97338.jpg
Red</A> '92 Rallysport V6 w/Heritage Package
K&N Filter
Cold Air Intake
DynoMax Catback Exhaust
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Aug 13, 2001 | 01:44 PM
  #2  
how are the following:
alignment
tire balance
shocks/struts
strut mounts
bushingsany of these can cause vibrations.

If they're all good, chck the bolt/screws holding your dash down.

If those are good, maybe some bondoglass or jb weld between the A pillars & dash to seal it up

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85 Firebird. $150.00
2.8 Auto.
Blown Head Gasket.
Mods Galore to Come....

[This message has been edited by Project: 85 2.8 bird (edited August 13, 2001).]

[This message has been edited by Project: 85 2.8 bird (edited August 13, 2001).]
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Aug 14, 2001 | 01:14 AM
  #3  
any other ideas??? does this not happen to anybody else????
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Aug 14, 2001 | 01:34 AM
  #4  
mine shakes all the time i even took it al out when i did my heater core put it back and it still shook the same. there is a post on the appearance board i think about this
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Aug 14, 2001 | 07:10 AM
  #5  
Dirve shaft may need balanced

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89 Trans Am Turbo 3.8L All stock 43,000 miles #1053 of 1555

Past Thirdgen:
86 Trans Am w/ built 355TPI with SLP goodies and too much other stuff to List. One sweet *** car, wish I would have had a good enough Job to pay insurance on three cars so I could keep it, but for a 89 Turbo Trans Am w/ Low miles, I think I made the right choice!
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Aug 14, 2001 | 07:38 AM
  #6  
mine did it pretty bad for awhile...I got my tires balanced....and it smoothed out alot.

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Sgt Panther

89 Firebird..2.8/3.4 conversion
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Aug 18, 2001 | 02:16 AM
  #7  
Subframe connectors!

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Slowly getting slower 1989 Firebird.. modded heavily for a v6
"I'd rather run last in a full out race, than to NOT have run at all"
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Aug 18, 2001 | 03:37 PM
  #8  
There is a pretty good chance that you just need to balance your tires... You might want to rotate them as well...
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