Why no nuts?

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Feb 7, 2022 | 12:39 PM

Catfish4818

Thread Starter

Safety Car

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From: Chester VA

Why no nuts?

I was concerned when I first saw this nutless stud poking up through both ends of the front leaf spring on our 2015 Z51. After some online research, it looks like that's the correct configuration. So now I'm not concerned, but I am as curious as hell. Does anyone know why this setup is the way it is?

TIA,
Larry

Last edited by Catfish4818; Feb 7, 2022 at 01:41 PM. Reason: typo

Feb 7, 2022 | 01:18 PM

Vette Ski

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From: Howell N.J

That does look like there is a nut missing. Weird it is !
Good luck in your quest.
Rich

Feb 7, 2022 | 01:21 PM

ss2z06

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No nut is needed. The spring is keeping a lot of tension down against the control arm and the bushing at the base has thick rubber. there is no way for it to rotate and change on its own.

Feb 7, 2022 | 01:24 PM

walleyfisher

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The suspension has bump stops that make the suspension travel less than the spring needs for full relax so the spring is 'captured"

My guess the engineers demmed it doe not need one and make the process of assembly easier and less expensive (the cost of two nuts and the laber to install them on thousands of Corvettes)

Last edited by walleyfisher; Feb 7, 2022 at 01:45 PM.

Feb 7, 2022 | 01:42 PM

Catfish4818

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From: Chester VA

Thanks, guys!

Feb 7, 2022 | 01:47 PM

eboggs_jkvl

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Don't got nuts there. The stud turns and adjusts the height of the car.

Elmer

Feb 7, 2022 | 01:56 PM

Catfish4818

Thread Starter

Safety Car

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From: Chester VA

Quote:

Originally Posted by eboggs_jkvl

Don't got nuts there. The stud turns and adjusts the height of the car.

Elmer

Thank you. By any chance, is this what people mean when they say they use longer bolts?

Feb 7, 2022 | 02:38 PM

JMII

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From: Margate, FL

Quote:

Originally Posted by Catfish4818

Thank you. By any chance, is this what people mean when they say they use longer bolts?

Lowering bolts.

If you want the car lower you need to decrease the gap but the factory piece has a spacer that prevents it from going lower...

As noted this bolt can't un-thread itself.

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Feb 7, 2022 | 03:07 PM

Catfish4818

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Safety Car

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From: Chester VA

Quote:

Originally Posted by JMII

Lowering bolts.

If you want the car lower you need to decrease the gap but the factory piece has a spacer that prevents it from going lower...

As noted this bolt can't un-thread itself.

Thanks! I'm not looking to make any changes or adjustments; was just curious if this stud was the 'longer bolt' that I see mentioned in some threads.

Feb 7, 2022 | 10:06 PM

#10

Vetteman Jack

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Interesting discussion. Thanks for all the explanations.

Feb 8, 2022 | 08:31 AM

#11

wrecker3

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From: NEW WINDSOR NY

If you lower your C7 you need to get a wheel alignment. If you need a alignment make sure the shop has rear caster tools.

Feb 8, 2022 | 09:15 AM

#12

seniorstorekeeper

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From: NW Georgia

Correct, those are the lifting bolts to raise and lower the car a bit, there is no nut on them. Looks like your car is lowered all the way down on the stock bolts. Mine was the same way, I raised them back up to the top of the threads for extra clearance to keep from scraping the front splitter and under the car when going in and out of driveways and parking lots.