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Z51 Rotor Replacement?

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Old Sep 27, 2021 | 10:18 PM
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Default Z51 Rotor Replacement?



I'm trying to decide whether or not to replace the rotors. All four look like this with the hairline cracks. No cracks larger than the ones in this picture, none are warped, none of the cracks go to the edge of the disc. I run a few HPDE's year. I run Carbotech XP12 on front and XP10 on rear. The rotors are six years old with about 12K miles. Thoughts?
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Old Sep 27, 2021 | 10:56 PM
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No. They are fine. I replaced mine when the grooves were flush with the rest of the rotor.
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Old Sep 27, 2021 | 11:45 PM
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got it...thx
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Old Oct 4, 2021 | 12:46 AM
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Originally Posted by Sugast
got it...thx
write another thread if you decide to upgrade your brakes when you decide to change the rotors lol. Trying to upgrade mine sometime soon
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Old Oct 4, 2021 | 09:38 AM
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Originally Posted by mememaster1001
write another thread if you decide to upgrade your brakes when you decide to change the rotors lol. Trying to upgrade mine sometime soon
Maybe ask the guys at RDP Store. They put together an upgrade kit for me including 2-piece DBA front rotors, Hawk race pads and Stop-Tech braided lines. Some serious stopping power! They are a supporting vendor in the forum.




Last edited by stevettec7; Oct 5, 2021 at 07:02 AM.
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Old Oct 4, 2021 | 03:24 PM
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Mine look similar from doing occasional track days. As long as your fingernail doesn't catch on those hairline cracks I've been told they are fine. My original Z51 rotors warped long before that, so I run DBA T3 rotors now.
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Old Oct 5, 2021 | 01:31 AM
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Originally Posted by stevettec7
Maybe ask the guys at RDP Store. They put together an upgrade kit for me including 2-piece DBA rotors, Stop-Tech pads and braided lines. They are a supporting vendor in the forum.


pretty rotor you got there

How much does the kit cost?
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Old Oct 5, 2021 | 07:00 AM
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Originally Posted by mememaster1001
pretty rotor you got there

How much does the kit cost?
Thanks. Here’s a kit that’s close to the one they put together for me. Although you’d pay more for the 2-pc T3 5000’s with the black “hats.”




https://www.rdpstore.com/p-8741-2014...4000-frts.aspx

Last edited by stevettec7; Oct 5, 2021 at 07:03 AM.
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Old Oct 5, 2021 | 04:48 PM
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Originally Posted by stevettec7
Thanks. Here’s a kit that’s close to the one they put together for me. Although you’d pay more for the 2-pc T3 5000’s with the black “hats.”




https://www.rdpstore.com/p-8741-2014...4000-frts.aspx
Oh, are these for the rears? Do they have a similar one for the fronts? also, any apparent issues on track with this kit?
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Old Oct 6, 2021 | 12:37 AM
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Originally Posted by mememaster1001
Oh, are these for the rears? Do they have a similar one for the fronts? also, any apparent issues on track with this kit?
That package they’re showing IS confusing. Better to contact them and ask them for a package price with the 2pc T3 5000 fronts and 4000 rears. These maids a huge improvement on the track over the stock Z51 setup.
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