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

One brake grabs first

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Old Oct 10, 2002 | 06:25 PM
  #1  
Project Z's Avatar
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From: Blaine, MN
Car: 1987 Iroc Z28
Engine: 305
Transmission: T5
Axle/Gears: 9 Bolt, 3.23 Posi
One brake grabs first

Just bought an 87 Iroc, 305, 5spd, Carb. just to let you know what I'm starting from.

When depressing the brake pedal while in motion, the car will initially pull to the right and then track straight. I assume that the right caliper is grabbing first, but I don't know the cause/soultion. Any sugestions are welcome.

Thanks.
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Old Oct 10, 2002 | 06:29 PM
  #2  
f0rmula350's Avatar
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From: philly, pa
damn, i thought i was the only one. except myne pulls to the left and then the steering wheel starts to shake violently. ive heard from a number of people that the brake lines go bad after a while, so i would start there. im about to replace everything that has to do with brakes in the front. good luck!
chris
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Old Oct 10, 2002 | 10:10 PM
  #3  
94-6spd's Avatar
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From: W. Kentucky
Car: 83 Z-28
Engine: 406
Transmission: TH350
Axle/Gears: 3.70
It's either the hoses or the calipers. Mine did this and I replaced hoses and calipers at the same time. It was so bad that one caliper was getting stuck and when I would drive smoke would come from the pads from the heat.
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Old Oct 10, 2002 | 10:26 PM
  #4  
ebmiller88's Avatar
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Change out your hoses and the calipers. It's all cheap, so change them all. Flush out and change the old fluid and you should be all set.


Ed
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Old Oct 10, 2002 | 10:44 PM
  #5  
87Formula4bbl's Avatar
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From: Toledo, OH
Car: '87 Formula
Engine: 350
Transmission: Auto
I had the same problem on my 85 Trans Am. After a while, the flexible rubber hoses connecting the calipers to the main brake line hoses built up with junk. This also decreases stopping power. I think if you replaced these, it should make a difference. I think they are around ? $12 ? apeice.
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Old Oct 11, 2002 | 09:41 AM
  #6  
Project Z's Avatar
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From: Blaine, MN
Car: 1987 Iroc Z28
Engine: 305
Transmission: T5
Axle/Gears: 9 Bolt, 3.23 Posi
Thanks for your suggestions. The car is less than a week in my possession and every day a new laundry list of repairs. Thank the Lord I found this resource. It really is invaluable.
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Old Oct 11, 2002 | 01:09 PM
  #7  
MdFormula350's Avatar
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From: Maryland; USA
hey thats what thirdgen's are good for j/k

anyway start cheap and do the brakes hoses, and then see what happens..
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Old Oct 12, 2002 | 01:28 AM
  #8  
CheezX's Avatar
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From: Vancouver, BC
Mine likes to do this ...
Attached Thumbnails One brake grabs first-skid-mark.jpg  
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Old Oct 12, 2002 | 03:10 PM
  #9  
mystikkal_69's Avatar
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From: San Antonio, TX
Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
Originally posted by CheezX
Mine likes to do this ...
mine does that too...... freaking driver's side front lockup.
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Old Oct 12, 2002 | 11:40 PM
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RU-QWIK's Avatar
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From: Central Coast Calif.
Car: 91' Camaro
Engine: 383 ci
Transmission: T-56
Axle/Gears: 9 bolt / 3:70
Mine likes to do that too, just in a little differant fashion...
Attached Thumbnails One brake grabs first-linnerd.jpg  
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Old Oct 13, 2002 | 12:31 AM
  #11  
CheezX's Avatar
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From: Vancouver, BC
hey those marks look throttle related. lol
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Old Oct 13, 2002 | 09:13 AM
  #12  
mystikkal_69's Avatar
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From: San Antonio, TX
Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
Originally posted by RU-QWIK
Mine likes to do that too, just in a little differant fashion...
yeah mine does that too when i push the other pedal to make the car go, to the floor

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Old Oct 13, 2002 | 11:12 AM
  #13  
AFast83z28's Avatar
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From: Longview TX
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my back brakes did that. They are drums and I hate drums. One i think rear wheel cylinder or something of that nature started bleeding and it locked my rear right drum every time i touched the brakes...that basicaly means...i slid 10 feet every time i wen tot stop
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Old Oct 13, 2002 | 03:19 PM
  #14  
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From: Vancouver, BC
my friend's '68 Chevelle did that. drums front and rear. fronts didn't work, rears always locked up.
300+ HP, crap brakes, crap handling. soooo much fun to drive. scared the hell out of everyone.
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