C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Jul 16, 2025 | 09:26 AM
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Default 77 rotors

Do i have to change in pairs? Can i just cut one that is grooved to 125 thousand?
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Old Jul 16, 2025 | 09:48 AM
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You can machine the grooved one, you don’t have to do pairs. You will need to cut the rivets off to have it turned if it hasn’t been done yet. Mark the alignment between the hub and rotor because of its original it’s been aligned at the factory to run true with the hub before removing.



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Old Jul 16, 2025 | 10:05 AM
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Find a shop with an on the car brake lathe to eliminate the runout issue
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Old Jul 16, 2025 | 05:45 PM
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Agreed, find a shop or a mobile service that turns them on car. Best method.
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