Rearend shifting under hard acceleration? - Mustang Evolution

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Old 07-25-2013, 09:05 PM   #1
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Rearend shifting under hard acceleration?

Got some 4.10s in now and notice when I accelerate hard and it hits second and even third it feels like the rear end shifts. I mean it chirps the tires every shift but not enough to move it that much.
Car is lowered.
What does everyone think is the most likely cause? Lower control arms or shocks?? I know probably both but if I'm doing one first...

As far as I know both are stock, car has 60k miles on it.

Thanks!
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Old 07-26-2013, 01:54 AM   #2
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Originally Posted by maverick214 View Post
Got some 4.10s in now and notice when I accelerate hard and it hits second and even third it feels like the rear end shifts. I mean it chirps the tires every shift but not enough to move it that much.
Car is lowered.
What does everyone think is the most likely cause? Lower control arms or shocks?? I know probably both but if I'm doing one first...

As far as I know both are stock, car has 60k miles on it.

Thanks!
You need an adjustable panhard bar. Lowering shifts the rear end towards the drivers side. Hard acceleration or cornering can amplify the shift. You need to center the rear end.
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Old 07-26-2013, 07:39 AM   #3
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You need an adjustable panhard bar. Lowering shifts the rear end towards the drivers side. Hard acceleration or cornering can amplify the shift. You need to center the rear end.
+1 what I came in to say. Get a new panhard bar and center the rear end. it'll take care of the problem. I have a steel one from J&M and it worked great.
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Old 07-26-2013, 08:13 PM   #4
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I checked it about 6 months ago and it was centred so I didn't buy one.
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