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Brake Disk thickness

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Old 05-27-2006, 04:37 PM
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911C2
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Default Brake Disk thickness

Can someone please give me the minimum thickness on the Rotors.
The car has 86K on it and best I can tell the rotors have never been replaced. Crossdrilled from and rear with 17's from the factory. I need from and rear minimums.

Tks in advance
Old 05-27-2006, 05:07 PM
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ceboyd
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are they standard or big reds?

the min thickness is actually printed on the sides of the hat portion of the rotors (sometimes you can't see it any more)

IIRC min thickness front is 30mm and min thickness rear is 28mm but someone else might want to chime in (and I think that is for big reds)
Old 05-27-2006, 05:37 PM
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Bill Verburg
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symetrical machine limits are
front 30.6mm same as for Big Reds
rear is 22.6mm

wear limit is 30.0/22.0mm
Old 05-27-2006, 08:10 PM
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911C2
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Originally Posted by Bill Verburg
symetrical machine limits are
front 30.6mm same as for Big Reds
rear is 22.6mm

wear limit is 30.0/22.0mm
Thank you.

What is Symetrical machine limit?
Standard Brakes not big reds.
So I assume same measurments apply
Old 05-27-2006, 10:21 PM
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Ray Calvo
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Buy a shop manual, cheapskate. Lots of good info in it like minimum thickness is 30.0 mm front and 22.0 mm rear (standard C2/C2S; I'm not digging for C4S stuff.)
Old 05-28-2006, 12:00 AM
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chris walrod
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Also, the min thicknesses are engraved onto the OD of the rotor, for future reference



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