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Tiny wheel spacers?

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Old Nov 7, 2015 | 04:12 PM
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Default Tiny wheel spacers?

So according to GM Z06 brakes will not fit without 4mm more room from the face.

Based on what I have see I'm going with the Z06 brakes this winter. Some say it does fit. So not sure if GM says 4mm for engineering/safety reasons or they really just do not fit.

Seems like a 4-5 mm spacer is a easy fix without really pushing the wheels out.

Last edited by NoOne; Nov 7, 2015 at 04:13 PM.
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Old Nov 7, 2015 | 04:28 PM
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Here's the link:

https://www.corvetteforum.com/articl...ler-literally/
.

Last edited by B Stead; Nov 7, 2015 at 06:03 PM.
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Old Nov 7, 2015 | 04:31 PM
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Originally Posted by B Stead
Read the SEMA news and there is a brake kit for the base C7 and a brake kit for the Z51
.
Yes but they do not fit, from the press release:

Corvette Z06 Brake Kits (Iron Rotors) for Stingray with Z51*
Designed for Stingray models equipped with the Z51 package, they feature the Z06’s standard, two-piece and slotted iron rotors – measuring 14.6-in. x 1.3-in (370mm x 34mm) for the front rotors and 14.4-in. x 1-in. (365mm x 26mm) for the rear. The front kit uses aluminum monoblock six-piston calipers, while the rear kit features four-piston fixed calipers. The front calipers also feature vented pistons for improved pad and brake fluid cooling. They also offer differentiated piston diameters of 30mm, 34mm and 38mm (leading to trailing), for more even pad pressure for improved pad wear. These brakes will not fit under base Stingray or Z51 wheels. They require a minimum of 4mm wheel clearance between the outboard face of the caliper and the inner wheel spokes.
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Old Nov 7, 2015 | 04:36 PM
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I read that same section and thought the same thing as you. Im curious to know if they really will clear or not. My gut tells me they will clear, but with only a smidge of clearance..
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Old Nov 7, 2015 | 04:49 PM
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Originally Posted by FYREANT
I read that same section and thought the same thing as you. Im curious to know if they really will clear or not. My gut tells me they will clear, but with only a smidge of clearance..
I assume the 4mm is for possibly deflection of the caliper.

Most say 2mm minimum space.

Last edited by NoOne; Nov 7, 2015 at 04:49 PM.
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Old Nov 7, 2015 | 10:08 PM
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the studs are long enough to add a spacer, pushing the wheel out, and you might be able to clearance the back of the spoke just in the hitting zone.
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Old Nov 8, 2015 | 12:30 AM
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If you use 4mm spacers, your original equipment wheels will remain in contact with the hub-centric with 1.5mm of connection. If you go to 6mm, your wheels will be off of the hub-centric by .5mm and you'll be putting all of the vertical loading onto the studs.

Keep in mind, the studs are engineered to deliver the clamping force (tension) to hold the wheels on. They aren't intended to resolve the forces of shear, which your studs will experience if you choose to lose contact with the hub-centric. These forces exerted on the studs can lead to stud failure due to fatigue.

Also, be sure your preserve a hub-centric connection with any aftermarket wheel you may select.

Last edited by copjsd; Nov 8, 2015 at 12:38 AM.
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