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Old Sep 11, 2022 | 12:02 PM
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Default Brake rotors

Any suggestions for brake rotors? Mine are original Delcos. I've never drove the car but they're a little used. Would it just be better to have them turned or buy aftermarket?

Thx
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Old Sep 11, 2022 | 12:50 PM
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I would turn the originals, they're pretty stout.
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Old Sep 11, 2022 | 01:53 PM
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Why do you think they need to be replaced? I would check them out a bit more before even turning them. You are as likely to have someone screw them up as make them better.
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Old Sep 11, 2022 | 02:22 PM
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Check to be sure above minimum spec for thickness..i bet they are ok.
also check run out on current rotors and pay attention to orientation.
agree with all above.. otherwise you are chinesium and risk run out issues.
post some pics!
i have even cleaned up some with a sander and brake cleaner..
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Old Sep 11, 2022 | 02:46 PM
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Clean them and use them,if you have a problem then deal with it.
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Old Sep 12, 2022 | 09:00 AM
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First measure the thickness. New they were 1.250", low limit is 1.215" so there is not a lot of material to remove and not advisable if they are flat. If grooved maybe. Finding a place to turn them and the cost may not justify it. Fronts can be turned on a conventional brake lathe, rears can be too but won't be concentric with the axle centerline and may introduce more runout than you started with and have a thinner rotor. An on the car lathe, used by a competent operator is required and again cost usually rules that out vs buying a new rotor from and NAPA. I have setup 100's of them for street use and they are fine. I look for those without the rivet pattern and transfer the pattern myself.

If they are in spec, flat and just glazed, a 100 grit with a DA will break the glaze and allow you to reuse them. I used to blast, DA and paint the hats for a new looking rotor, it takes too much time and again it is cost effective to just buy one at NAPA, no shipping cost and easy pick up.
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