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

rear springs

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Old Oct 17, 2008 | 06:48 PM
  #1  
bramracing's Avatar
bramracing
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Default rear springs

is there a difference in the soft ride spring. vs the z51 spring if so what is it. need help ASAP the car is a 1984 with stock suppension i bought a set of soft ride springs when they arrived . the spring had hd z51 on it will that ride softer . than the stock spring that is on there now. the streets suck in chicago . will b peeing blood soon . kidneys need help ASAP! the spring r 1985 to 1988

Last edited by bramracing; Oct 18, 2008 at 11:24 AM. Reason: more info
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Old Oct 17, 2008 | 07:17 PM
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DBall
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From: Snellville GA
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Yes, there are big differences based on the year of you car if the springs are still original. Depending on what you are looking for, the later C4s had softer springs from about 92 on. I have '90 Z-51 springs for sale that are the stiffest stock GM spring made . Pm me if you want more info. Mstrs2
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Old Oct 18, 2008 | 08:06 AM
  #3  
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rons85
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From: Huntington ma
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Many different spring Rates through the years and option packages. And the aftermarket. They'll all physically Interchange, however - they all have the same mounting dimensions.
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Old Oct 18, 2008 | 09:11 AM
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Originally Posted by DBall
Yes, there are big differences based on the year of you car if the springs are still original.

You can see from the chart that the late Z51 springs are softer than the std springs in early cars.

http://www.vettenet.org/susp_chart.html
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Old Oct 20, 2008 | 08:09 PM
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coupeguy2001
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Default springs

the 86 springs were about the softest of the early cars, and as firm as the newer cars.
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