Suspension and Chassis Questions about your suspension? Need chassis advice?

Tight turns causes rear to hop ? Whats gone bad?

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Old Nov 30, 2011 | 05:01 PM
  #1  
J0hn_J0hn08's Avatar
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From: SE Houston TX
Car: 1986 Iroc-Z
Engine: 355
Transmission: 700R4
Tight turns causes rear to hop ? Whats gone bad?

I like taking really tight turns sometimes just for fun i guess lol anyway ive noticed that when i do the rear of the car seems to hop to the side with the turn and gives me a wobble effect.

What suspension component goes bad and causes this? At first i thought it was because of the tires i had but i recently switched them to stock size and the hoping is still there. I also know i need front shocks pretty bad but im wondering if its something on the rear of the car, anything i can do to stiffen it up?


Any ideas?

Thanks
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Old Nov 30, 2011 | 05:44 PM
  #2  
xpndbl3's Avatar
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: Tight turns causes rear to hop ? Whats gone bad?

alignment issue sounds like or just the tires scrubbing over in the turns
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Old Nov 30, 2011 | 06:01 PM
  #3  
//<86TA>\\'s Avatar
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Tight turns causes rear to hop ? Whats gone bad?

Check the condition of the panhard bar and the 2 control arms. You could have a bad bushing or something broken
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Old Dec 2, 2011 | 06:06 AM
  #4  
NCGuy68's Avatar
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From: Wake Forest, NC
Car: A lousy LS1 car
Engine: 347 Cu. In.
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Re: Tight turns causes rear to hop ? Whats gone bad?

Bad front shocks can make the nose dip in a tight turn which unloads the rear suspension causing the car to hop. Replace those first since you already know their shot.
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Old Dec 3, 2011 | 07:52 PM
  #5  
amlv20's Avatar
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From: patterson, ca
Car: 1986 iroc-z
Engine: 5.0 tpi
Transmission: 700r4
Axle/Gears: stock.
Re: Tight turns causes rear to hop ? Whats gone bad?

have you checked your diff? some one could have welded the spiders or if you have posi some one could have changed a spring or put no modifier. just remember when you turn the out side rear wheel has to travel a further distance than the inside rear wheel. so the inside wheel slows down, kind of like how you get a john deere to make a tight turn by braking one rear wheel and turning the other and it turns towards the slower turning wheel. so if your spiders or friction packs are not braking lose to allow the inside wheel to spin slower than the outside wheel, the rear of the car will hop or "chatter" towards the outside... just a simple idea.
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