C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Rear spring "delaminating"

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Old Sep 24, 2007 | 11:42 AM
  #1  
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Default Rear spring "delaminating"

While doing some work under my car sunday,I noticed the rear spring (95 vert) was "splintering or delaminating" It is not too bad yet. Is this dangerous ? I think this was a composite spring-another "great idea from GM". Too bad they never did fully research the life of the spring under all different climate conditions. If I do replace this will I have to lower the back ?
thanks
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Old Sep 24, 2007 | 12:37 PM
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I really don't know the severity of the de-lamination so it is hard to say how dangerous this might be. Changing the rear spring on my 86 was very easy, just drop spare tire, use a floor jack to hold and take pressure off spring bolt, remove nut, lower jack and tension is relieved, repeat process on other side. Four bolts connect spring to differential carrier, remove all four bolts and spring falls out. Make sure to mark shims so you know where they go upon re-installation. Call Vette Brakes and Products @800 237 9991, they are manufacturers of replacement composite springs for vettes ,they will be able to guide you to the proper spring and tell you of how dangerous your problem might be. Good luck.
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Old Sep 24, 2007 | 03:40 PM
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Replace it as soon as possible. Not a hard job at all. As noted be aware of the position of the shims so you can put them back in the same place. No need to lower the spare tire.
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Old Sep 24, 2007 | 03:44 PM
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I had mine completely break on me, it's not a severe problem, but you'll know it when it happens because you'll be bottoming out over every bump in the rear. Get it replaced when you can, and take it easy on the car until you get it replaced.
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Old Sep 24, 2007 | 04:21 PM
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I didnt think it was a bad job to replace the spring either. But when mine when bad it was cause there was a exhuast leak-- it was blowing on the spring.
Good Luck
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Old Sep 24, 2007 | 04:28 PM
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There's a set in the parts section right now. Cheap.
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Old Sep 24, 2007 | 05:57 PM
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Thanks guys for your input. Nothing like a steel spring. I wonder if the new vettes have the composite?
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Old Sep 24, 2007 | 06:07 PM
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Originally Posted by enventr
Thanks guys for your input. Nothing like a steel spring. I wonder if the new vettes have the composite?
Yep, they have the same basic thing, composite transverse spring.
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Old Sep 24, 2007 | 09:27 PM
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We use composite springs on the aircraft we build here at my work, heck we even used on the the Space ship. They are light and work great!
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