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twitchy front end

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Old Oct 28, 2003 | 10:53 AM
  #1  
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dwestsr
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From: charlotte nc
Default twitchy front end

i have an 86 coupe that i have had for about three months. on a bumpy or rutted road the car gets very twitchy. the steering feel tight and i have jacked up the front end and feel no loose motion either in the wheel bearings or the balljoints. the tie rods are tight as well. the previous owner told me about the problem before i bought the car . he said that the problem began when he replaced the rear tires. i replaced the shocks all around and it helped a lot. again ,i only notice it on rough or rutted (from heavy trucks) roads. is this normal for this car and am i just not used to a vette? btw, the front tires are about 3/4 worn and the treadwear is very uniform. Any help/ suggestions are much appreciated.
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Old Oct 28, 2003 | 11:22 AM
  #2  
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Goody
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From: Oak Harbor WA
Default Re: twitchy front end (dwestsr)

Air pressure in the tires and a 4 wheel alignment will likely fix this if the suspension is tight as you state.
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Old Oct 28, 2003 | 11:50 AM
  #3  
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From: Clearwater FL
St. Jude Donor '06
Default Re: twitchy front end (dwestsr)

Remember that when you jack the car up, you are changing the suspension geometry in the jacked up position, and a loose tierod end or ball joint might seem tight...
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Old Oct 28, 2003 | 12:06 PM
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From: Schmuckville SA
Default Re: twitchy front end (dwestsr)

Also check that you dont have any radial shift going on in any of the tires.

Especially the front. My Vette had decent tires on it when I bought it but the

front end was dangerously darting around over bumps and on the highway.

Changin the tires around help me narrow down to where the bad tire was..

HTH
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Old Oct 28, 2003 | 12:06 PM
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From: Honolulu HI
Default Re: twitchy front end (dwestsr)

Front tire pressure makes a big difference in the way my 91 Z07 handles. If it gets a little low the car tends to wander on the road. I was told that is one reason that GM switched to a narrower front tire in newer C4s.

Aloha,
Larry
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Old Oct 28, 2003 | 12:20 PM
  #6  
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From: Magnolia Mississippi
St. Jude '03-'04-'05-'06-'07
Default Re: twitchy front end (Larry Mackey)

wondered why they went 8.5 front and 9.5 rears
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