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Old 06-09-2024, 06:34 PM
Embryc10 Embryc10 is offline
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Default 57 Chevy spring rate help

57 Chevy on a custom chassis with IRS. Having issues with ride quality and the car getting unhappy during gear changes. Roughly 700hp and it shakes the tires under throttle during gear change to the point it feels like itís trying to jerk off the road. Current coil over springs are 550 front 500 rear. The car is extremely stiff. Any experience with a similar set-up? Are the springs too stiff? LT4/10 spd.

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Old 06-10-2024, 06:49 AM
dhutton dhutton is offline
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I have a 56 pickup with C5 IRS. It was a little squirrelly until I set the rear toe. I would also wonder if you have a rear bumpsteer issue. Have you experimented with shock settings?

What IRS is that?

Don

Last edited by dhutton; 06-10-2024 at 06:52 AM.
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