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Thunk noise in rear

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Old 06-17-2002, 06:21 PM
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Car: 92 Camaro RS
Engine: 350 TPI
Transmission: T5 manual
Thunk noise in rear

I just noticed a new thunk noice (almost like droping a bolt in a plastic bucket) in the rear of the car. It only happens when I swerve the car back & forth in ether direction, even at slow speeds.

No evidence of the tires rubbing.
Stock springs and sway bar but with poly endlinks.
koni shocks
Edelbrock tubular panhard bar.
Stock arms with new 1LE bushings.
Torsen diff & 3.42 gears.
The rest is stock
Nothing been change for 3 months.

Any ideas?
Old 06-17-2002, 06:29 PM
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Car: 1986 Iroc Camaro
Engine: 305 TPI
Transmission: Th700R4 Jr. Raptor
I had a similar sound once, but it was because my spare tire wasn't secured in place. It would bump against the inside of it's housing, and really freaked me out.

Hopefully you have the same problem! It's a cheap fix. ; )
Old 06-19-2002, 08:16 AM
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Car: 92 Camaro RS
Engine: 350 TPI
Transmission: T5 manual
Originally posted by Christos
I had a similar sound once, but it was because my spare tire wasn't secured in place. It would bump against the inside of it's housing, and really freaked me out.

Hopefully you have the same problem! It's a cheap fix. ; )
Nope, the tire was secure, but I tightened it up more and the sound is still there.
Old 06-19-2002, 08:50 PM
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Car: 83 Z28 Camaro
Engine: 355 Holley Projection
Transmission: TH400
Axle/Gears: 10 bolt Zexal 3.73
Check bolts on the panhard bar. I had the same noise, sounded like the rearend was screwed up and only when turning. Found the bar loose. It was about a month after I put it on also. I guess you just have to tighten them after a thousand miles or so after installation. Hope this helps.
Old 06-20-2002, 03:02 PM
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Car: 92 Camaro RS
Engine: 350 TPI
Transmission: T5 manual
Haven't been able to thoroughly check, but I did look and the bolts look ok. I put the panhard bar on a year ago so if it was going to loosen you'd think it would have done so long before now.
Old 06-20-2002, 08:36 PM
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Car: 83 Z28 Camaro
Engine: 355 Holley Projection
Transmission: TH400
Axle/Gears: 10 bolt Zexal 3.73
Try to tighten the bolts. They will look normal, and still be loose. I am pretty sure this is your problem. Keep us posted.
Old 06-21-2002, 01:47 AM
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Car: 1992 Camaro Z28
Engine: 406
Transmission: T56
Axle/Gears: 4.10 GM 7.5 10-bolt
Check your end link to your sway bar on the rear-end. My friend's car did that and he had a broken end link on his sway bar.
Old 06-22-2002, 06:43 AM
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Car: 92 Camaro RS
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Originally posted by STEVE-83Z
Try to tighten the bolts. They will look normal, and still be loose. I am pretty sure this is your problem. Keep us posted.
Good call. One of the bolts was ~10 ft.lbs. light. Tightened it and regreased the fittings and took it for a test. No thunk.

Thanks
Old 06-24-2002, 08:22 PM
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Car: 83 Z28 Camaro
Engine: 355 Holley Projection
Transmission: TH400
Axle/Gears: 10 bolt Zexal 3.73
Good !! I knew it sounded like the same problem I had. Good Luck with it !!
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