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

help with rear end hitting sway bar.

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Old Jul 25, 2015 | 12:10 AM
  #1  
sleprock's Avatar
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From: connellsville pa
Car: 1986 irocz
Engine: 383 with ds1 procharger
Transmission: 700r4
Axle/Gears: moser 9' 370's
help with rear end hitting sway bar.

i bought a 86 iroc. everything under the car is either spohn or upi and bmr. the suspension was done right it allso has coilovers front and back. the problem iam having is on the driverside the rearend is about 2inches away from the swaybar but the pass, side the rearend is hitting the swaybar and hitting hard when i hit a bump plus its causing a vibration. i measured from the body to the tire on both sides of the car infront and behind the tires with the same measurement on both sides. thinking the rearend was crooket. the sway bar is not bent either. i dont know what to adjust first. has anyone had this issue before? oh and the car has a moser ford 9inch. with relocate brackets. p.s. sorry about my spelling getting old.
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Old Jul 25, 2015 | 01:22 PM
  #2  
//<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: help with rear end hitting sway bar.

If the sway bar has the mounting brackets on both sides I don't see how it could possibly be hitting the axle. Any pics?


are you hearing a banging noose and you believe its the sway bar or have you evidence the bar is in fact hitting.


usually the banging is caused by the rear coilovrrs bottoming out since most designs on the market are poorly speced out and are too short
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Old Jul 26, 2015 | 02:54 PM
  #3  
sleprock's Avatar
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From: connellsville pa
Car: 1986 irocz
Engine: 383 with ds1 procharger
Transmission: 700r4
Axle/Gears: moser 9' 370's
Re: help with rear end hitting sway bar.

i will get picts when my son gets off work. its banging loud. i left the tire shop[ the otherday. after switching wheels. when i went back with my other ride to get the wheels that i had removed. the guy gave me a clip he said when i pulled out the car hit so hard in the rear that one of the clips holding the brake line to the drum fell off.
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Old Jul 26, 2015 | 03:04 PM
  #4  
sleprock's Avatar
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Joined: Apr 2015
Posts: 57
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From: connellsville pa
Car: 1986 irocz
Engine: 383 with ds1 procharger
Transmission: 700r4
Axle/Gears: moser 9' 370's
Re: help with rear end hitting sway bar.

my car has qa1 coilovers. i will get picts this evening. i can see the swaybar resting agenst the rearend on the pass, side.
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Old Aug 26, 2015 | 12:39 PM
  #5  
crazynights's Avatar
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From: MA
Car: 1982 Z-28
Engine: 383
Transmission: Turbo 350
Axle/Gears: Det. Posi, Superior Axles, 3:73 G
Re: help with rear end hitting sway bar.

Did you get this figured out? My rear sway was banging my Aluminum Cover. You could see the marks on the rear and when you bounced on it, the sway bar hit the bottom portion. I tried to move the clamps that hold the bushings, but it didn't work. If you fixed, I'd like to know how. Thank you.
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Old Aug 26, 2015 | 02:26 PM
  #6  
TTOP350's Avatar
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: help with rear end hitting sway bar.

You normally have to space the swaybar away from the housing..
Also make sure the the TQ arm adapter bracket upper bolt area isn't hitting the floorpan/ driveshaft tunnel.
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Old Aug 29, 2015 | 04:34 PM
  #7  
sleprock's Avatar
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Joined: Apr 2015
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From: connellsville pa
Car: 1986 irocz
Engine: 383 with ds1 procharger
Transmission: 700r4
Axle/Gears: moser 9' 370's
Re: help with rear end hitting sway bar.

thanks i will check to see if the tq arm bolt is hitting. i havent had time to **** with the car. but i have someone coming over to check it out.
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