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feels twitchy after alignment

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Old Aug 29, 2015 | 07:11 AM
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Default feels twitchy after alignment

have a 97 base with c5 zo6 sways and shocks, had an alignment and now over rough roads when I hit a big bump it feels like the rear end wants to cover to the drivers side. but when I have a passenger it does not. is this normal or did they screw up the alignment? I know they adjusted the right rear, what else not sure
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Old Aug 29, 2015 | 07:36 AM
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Why did you have the alignment done?
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Old Aug 29, 2015 | 11:56 AM
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Post your alignment results so i can see if anything is amiss.

Signed - the alignment guy
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Old Aug 29, 2015 | 07:12 PM
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I put it in the ditch and wanted to make sure it was ok, I did not get the alignment results. btw, it tracks straight down the road, hands off the wheel, except a slight turn to the right from the crowned road.
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Old Aug 29, 2015 | 07:56 PM
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Originally Posted by mrr23
Post your alignment results so i can see if anything is amiss.

Signed - the alignment guy
what should the results be?
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Old Aug 29, 2015 | 09:18 PM
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Originally Posted by kennedy759
I put it in the ditch and wanted to make sure it was ok, I did not get the alignment results. btw, it tracks straight down the road, hands off the wheel, except a slight turn to the right from the crowned road.
Then its not correct. A proper alignment will go straight on a crowned road.
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Old Aug 29, 2015 | 09:20 PM
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Originally Posted by kennedy759
what should the results be?

front*
camber -0.20*
caster left 6.10* right 6.40*
total toe 0.08*

rear
camber -0.18*
total toe -0.02*
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Old Aug 30, 2015 | 09:11 AM
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Originally Posted by mrr23
front*
camber -0.20*
caster left 6.10* right 6.40*
total toe 0.08*

rear
camber -0.18*
total toe -0.02*
your numbers match whats in my service manual, but what about the c5 zo6 sways and shocks, do they make a difference?
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Old Aug 30, 2015 | 03:39 PM
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Originally Posted by kennedy759
your numbers match whats in my service manual, but what about the c5 zo6 sways and shocks, do they make a difference?
no they do not
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Old Aug 30, 2015 | 04:06 PM
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post a pic of your alignment sheet or what the results were after it was done and we may be able to offer better advice... these cars in general are pretty bad about the rear wanting to kick out over bumps, in my opinion mainly due to the leaf springs... leafs may do good on a prepped track but on bad roads they aren't optimal... this is one of the reasons I made the change to coilovers, so I could get rid of the leaf springs and be able to lower the car without losing suspension travel
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Old Aug 30, 2015 | 04:42 PM
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Originally Posted by mrr23
no they do not
what adjustment could be wrong to cause it to kick out? and what wheel if it kicks out to the left?
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Old Aug 30, 2015 | 04:50 PM
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Originally Posted by kennedy759
what adjustment could be wrong to cause it to kick out? and what wheel if it kicks out to the left?
any of them. can't help without seeing what they set the alignment to.
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Old Aug 31, 2015 | 12:20 PM
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Originally Posted by mrr23
any of them. can't help without seeing what they set the alignment to.
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Old Sep 8, 2015 | 01:04 PM
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thanks everyone, fixed the problem with a new alignment, the right rear had a toe of .24
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