1971 Rear coils springs

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Mar 19, 2021 | 10:47 PM

riskyb

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1971 Rear coils springs

Can someone tell if a 1971 Cutlass has Variable Rate Spring or Constant Rate Spring stock from the factory? Thanks

Mar 20, 2021 | 05:46 AM

oldcutlass

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Joined: Oct 2009

Posts: 42,514

From: Poteau, Ok

Variable rate springs have the coils spaced closer at one end of the spring and constant they will be evenly spaced.

Mar 20, 2021 | 08:39 AM

riskyb

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Good info but what was stock in 1971?

Mar 21, 2021 | 05:43 AM

oldoldss

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Posts: 208

From: Saxonburg, PA

The coils on mine are evenly spaced, so I'd say constant rate.

Mar 21, 2021 | 06:08 AM

oldoldss

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Joined: Feb 2009

Posts: 208

From: Saxonburg, PA

Page 4-90 of the assembly manual shows the rear spring options. The standard rear springs on a Cutlass (3287 or 3269) were 106 lb/in. For F41 or FE2 suspension, the rates were higher.

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