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Old 11-24-2014, 09:43 PM   #1
snowbear
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Default rear left spring taper

Why are some rear leaf springs tapered inward from front to rear? On the suburban they are over 2" narrower at the rear than the front.
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Old 11-25-2014, 07:43 AM   #2
ABNRML
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Default Re: rear left spring taper

my guess would be to try and keep the spring flat-ish on the spring perch during articulation but that is a total guess I am sure there is a better reason.
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Old 11-29-2014, 06:29 AM   #3
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Default Re: rear left spring taper

It took a little digging to find the answer...


Mounting the leafs so that the front eyes are slightly inboard of the rear eyes will cause the leafs to have more lateral stiffness. This can make the chassis feel tighter and may help prevent the rear suspension from binding due to excessive lateral deflection of the leaf...

Whenever the body slides over the rear end during cornering, the splayed leafs can cause rear steer that will help the car to turn...


With a heavy rig this makes sense. I guess I'll be trying to keep some of this taper.
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Last edited by snowbear; 11-29-2014 at 06:31 AM.
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