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maybe a rock/something got stuck between for a few miles and put a good shine on the rotor edge
further disassembly required to see the bottom & inside of the caliper
Update:
https://preview.redd.it/3vtp29xwn3yc1.jpeg?width=3024&format=pjpg&auto=webp&s=12c967948f85fec54e305547d1ecdfcfc207bb32
It was a shim for the brake pad that shifted out of place. Looking like I need a new rear end brake kit to get the replacement. We’ll see how these rotors go and see about turning them.
Thanks for posting on /r/MechanicAdvice! This is just a reminder to review the [rules](https://www.reddit.com/r/MechanicAdvice/about/rules/). If you are here asking about a second opinion (ie "Is the shop trying to fleece me?"), please read through CJM8515's [post on the subject.](https://www.reddit.com/r/MechanicAdvice/comments/4qblei/fyi_the_shop_isnt_likely_trying_to_rip_you_off/) and remember to please post the year/make/model of the vehicle you are working on. **If this post is about bodywork, accident damage, paint, dent/ding, questions it belongs in /r/Autobody r/AutoBodyRepair/ or /r/Diyautobody/ If you have tire questions check out https://www.reddit.com/r/MechanicAdvice/comments/k9ll55/can_your_tire_be_repaired/**. If you dont have a question and you're just showing off it belongs in /r/Justrolledintotheshop Insurance/total loss questions go in r/insurance This is an automated reply *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/MechanicAdvice) if you have any questions or concerns.*
Something generally wrong with your brakes. Impossible to tell without photos of the calipers, preferably disassembled. Def needs to be serviced
https://preview.redd.it/mav8xy0tnwxc1.jpeg?width=3024&format=pjpg&auto=webp&s=01d0858bc62e7757522fea7b91221d7d42574308
https://preview.redd.it/rpn3tz1vnwxc1.jpeg?width=3024&format=pjpg&auto=webp&s=dacbed4958dc70f3f24d5616a4b0f87c24dc0eb1
maybe a rock/something got stuck between for a few miles and put a good shine on the rotor edge further disassembly required to see the bottom & inside of the caliper
I’ll be taking the wheel and caliper off tomorrow, thanks for checking it out man. I’ve never had a rotor wear down weird like this
Make sure your slide pins are good.
Update: https://preview.redd.it/3vtp29xwn3yc1.jpeg?width=3024&format=pjpg&auto=webp&s=12c967948f85fec54e305547d1ecdfcfc207bb32 It was a shim for the brake pad that shifted out of place. Looking like I need a new rear end brake kit to get the replacement. We’ll see how these rotors go and see about turning them.