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

Danger!!!!!!!!!

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Old Nov 20, 2000 | 12:49 PM
  #1  
redcamaro83's Avatar
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
Danger!!!!!!!!!

HELP
When i hit the brakes firmly (Not slamming them) the front end wobbles like crazy. The car was hit at one time but was "fixed."

Also the rearend does a wierd wobble after turns. I and only describe it as a wierd shift in position from right to left stiffly.
Its dangerous!!!!
HELLLLLLPP!!!!!
I'm serious i need help but first i want opinions......Please

[This message has been edited by redcamaro83 (edited November 20, 2000).]
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Old Nov 20, 2000 | 07:47 PM
  #2  
redcamaro83's Avatar
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
come on people i'm in chicago with snow comin soon
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Old Nov 20, 2000 | 08:57 PM
  #3  
84IROC's Avatar
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From: Ft. Worth,Tx.
I'm no expert but I may be able to offer a few suggestions. The front end sounds as if it needs ball joints and maybe wheel bearings. Grab the wheel and see if it shakes back and forth to detect and looseness. Also stand outside the car while somebody drives it back and forth to try and detect and shift in the bearings or ball joints and listen for any noises that would give you a clue as to where to start looking first.

As for the rear, it sounds like either the panhard rod or its brace is loose or the bushings in it or the lower control arms are worn out. Just jack up the rear of the car and pull on the aforementioned peices and visually inspect the bushings.

------------------
'84Z28/'92 305TPI
'92 complete rear suspension/PBR disc/Posi/3:42
Light weight 34.5mm stabilizer bar in front
23mm sta. bar in rear
rear lowered 1" by cutting 1 1/4 coils of '84Z28 springs
comp cam, flowmaster
TB coolantbypass/shutoff valve to heater core
MAT relocated
Ram-Air(home-made) gutted air-box
IROC ground effects/wheels GY245/50's
700R4 superior shift kit/ corvette servo(excellent shift kit BTW) Rebuilt engine and transplanted it myself. Love this engine!
LOW performance people should drive low performance vehicles!
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Old Nov 20, 2000 | 09:02 PM
  #4  
redcamaro83's Avatar
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
Thank You!!!
Anyone else???
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Old Nov 21, 2000 | 09:43 AM
  #5  
TomP's Avatar
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Joined: Mar 2000
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From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Yes- get your butt down to a good tire/alignment shop quick. I think 84IROC's right, but you want these guys to check everything over. Unless of course you want your linkage to fall apart, and get you into an accident from the car doing some spinouts.

The idler arm is probably also shot; it's one of the "usual" wear items that has to get replaced after a while.


------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
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Old Nov 21, 2000 | 04:04 PM
  #6  
355 IROC-Z's Avatar
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Joined: Nov 1999
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From: New Columbia, PA
When i hit the brakes firmly (Not slamming them) the front end wobbles like crazy. The car was
hit at one time but was "fixed."

if you feel a shimmy in the steering wheel at light to moderate braking, your rotors are probably warped.
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Old Nov 21, 2000 | 10:11 PM
  #7  
ausrs's Avatar
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From: New South Wales Australia
definately the front rotors are warped ...get them machined and also change the brake pads at the same time because they will be out of shape as well
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Old Nov 22, 2000 | 12:29 AM
  #8  
ColinOpseth's Avatar
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Joined: Nov 2000
Posts: 762
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From: Riverside, CA
Car: 1987 Camaro IROC-Z
Engine: 305TPI
Transmission: 700R4
yeah, get the rotors turned, new pads and CHECK YOUR BRAKE LINES.. they are rubber bro, and are probably shot... now is the time to bleed out the old fluid from your brakes too!!

------------------
Webmaster: www.IROC-Z.org
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Old Nov 22, 2000 | 11:13 AM
  #9  
redcamaro83's Avatar
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
Thankyou all!!! Any more suggestions
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Old Nov 22, 2000 | 08:00 PM
  #10  
merf23's Avatar
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From: waterford, CT 06385
Did the problem happen all of a sudden or has it been a progressive thing?
If it happened all of a sudden, chances are that something broke. Inspect the tires, tie rods, ball joints and struts.
I had a belt break on a tire which caused it to be egg shaped..NOT GOOD
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