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wobble while braking

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Old 04-24-2011 | 11:08 PM
  #1  
88ragtop's Avatar
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Joined: Jul 2003
Posts: 148
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From: Baton Rouge, La
Car: 88 sport coupe convert
Engine: 305 tb
Transmission: auto
wobble while braking

changed to 16" iroc rims on an 88 sport coupe convertible. On the test drive when applying the brake at 50 mph the front end feels like it's coming apart. I put the stock wheels back on and now it does the same thing. Drove the car on the interstate the week before with no problems. Did something break when I jacked the car up maybe. I'm the second owner or the car and the front end parts are probably all original. I only changed pads a couple of times.Car only has 60,000 miles. Car sits a lot and is hardly driven and I now know thats the worst thing to do. Pads are still pretty good and rotors do not seemed wharped as I know what that feels like. What should I look for?
Old 04-24-2011 | 11:14 PM
  #2  
blackbmagic's Avatar
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10 Year Member
 
Joined: Mar 2010
Posts: 865
Likes: 2
From: LI, NY
Car: 1985 IROC-Z
Engine: 355
Transmission: T5
Axle/Gears: 3.42 10 Bolt Posi
Re: wobble while braking

Control arm bushings. Hope you didn't jack the car up from the bushings.

Possible warped rotors. Check them.
Old 04-28-2011 | 01:44 PM
  #3  
ASE doc's Avatar
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Joined: Apr 2010
Posts: 4,337
Likes: 27
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: wobble while braking

Check rotors and rear drums for "sticky" spots as you turn them.
Old 04-30-2011 | 09:39 PM
  #4  
88ragtop's Avatar
Thread Starter
Member
 
Joined: Jul 2003
Posts: 148
Likes: 0
From: Baton Rouge, La
Car: 88 sport coupe convert
Engine: 305 tb
Transmission: auto
Re: wobble while braking

No. did not jack the car on the control arms. Used floor jack on the side railings.
Old 05-01-2011 | 12:54 AM
  #5  
91 1LE's Avatar
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Joined: Aug 2007
Posts: 341
Likes: 1
From: Litchfield Park
Car: '91 1LE
Engine: 377 w/Stealthram
Transmission: T56
Axle/Gears: 3.42 Torsen
Re: wobble while braking

Warped brake rotors or incorrect torque procedure when installing wheels.
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