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Old 01-21-2021, 01:17 PM
Best4x4xFAR's Avatar
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Odd Rotor Markings Shortly after Pad Replacement?

So I replaced the rear pads about 400-500 miles ago, and I was walking up to the car today and noticed these odd 'ring' markings on both rear rotors (though the passenger side is worse than the drivers side)..

Are they heat markings from a high spot on the pads dragging or something? Or is it the opposite a a low spot on the pads not making contact and light corrosion showing up? Something completely different?

Any insight is appreciated, thanks..

(Pads are not BMW, they are Autozone Duralast Gold semi-metallic pads)
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Old 01-21-2021, 01:49 PM
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Looks like you did a pad slap. How old are the rotors? Hard to tell but looks like they have a lip to them. Checked for runout, thickness, or other wear on them?

Never used Autozone pads so nothing good or bad to say about those. Does the truck brake normally and sound normal? If so, might just let it go until the next time you have to do front rotors/pads.
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Old 01-22-2021, 04:35 PM
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I dunno...maybe just needs some more driving?


500 on rears, especially if highway, isnt a lot of time for pads to settle in..
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Old 01-22-2021, 09:06 PM
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Did you bed em in properly? I had this for a while til they bed in properly (didnt machine rotors)


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Old 01-23-2021, 01:12 AM
ard ard is offline
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^ Agree, that would accelerate pad mating.


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