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Old 04-10-2016, 07:23 PM
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07 JK Flaking Brake Rotors

Hey guys,

I am new to this forum and had a question about my brakes on my 07 JK. It looks to me like the rotors are rusted but the contact surface is fine. What do you guys think? Do I need new rotors?

The brakes seem to work well and there is no squeaking or grinding - The rear ones are the ones that I am a little concerned about.

Thanks!
Andrew

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Old 04-10-2016, 07:41 PM   #2
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If the pads are worn enough to require replacement and the rotors look to be in kinda rough shape, my advice would be to replace everything at the same time. OEM rotors aren't expensive, and when you combine new pads, new rotors and new caliper hardware, the brake job is more easily done, lasts longer, and can provide more effective stopping power. Just my .02......

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Old 04-10-2016, 07:46 PM   #3
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If the pads are worn enough to require replacement and the rotors look to be in kinda rough shape, my advice would be to replace everything at the same time. OEM rotors aren't expensive, and when you combine new pads, new rotors and new caliper hardware, the brake job is more easily done, lasts longer, and can provide more effective stopping power. Just my .02......
Forgot to add that the rears tend to wear a LOT faster than the fronts. My front pads/rotors were in great shape when I bought it used, but the rears were BADLY worn. In my case, I had to replace the rotors, there was no option.
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Old 04-10-2016, 07:47 PM   #4
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Looks to me like the rear brakes need some love. The calipers don't seem to gripping the rotors in those pics. Maybe they're locked in place? I don't know, that's a lot of rust there. The calipers need to be able to move freely. Rust on the outer and inner edges of the rotors is common as they're cast iron but the surface area where the pads grip them should be smooth and shiny. Would be a great time to check your front ones too.
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Old 04-10-2016, 07:56 PM
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Ok I'll have to replace them but do you guys think it's a safety issue? I would like to drive it for a couple days while the weather is nice here in Omaha
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Old 04-10-2016, 07:58 PM   #6
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Forgot to add that the rears tend to wear a LOT faster than the fronts. My front pads/rotors were in great shape when I bought it used, but the rears were BADLY worn. In my case, I had to replace the rotors, there was no option.

Agree with you man about just replacing it all and being done with it. However in my experience I'll replace two sets of front pads for every one set of rears.

Brakes. They only slow you down.
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Old 04-10-2016, 08:03 PM
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Thanks guys. Doesn't seem that hard to do so I'll order some pads/rotors and then clean up the rust around the rotor and caliper while it's off - anything else I should check while the wheel is off?
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Old 04-10-2016, 08:06 PM   #8
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Ok I'll have to replace them but do you guys think it's a safety issue? I would like to drive it for a couple days while the weather is nice here in Omaha
That all depends. How good looking are the nurses in the emergency room where you are? Haha. Seriously, I'd put safety first and fix those brakes soon as possible. By the looks of it your rear brakes aren't doing much if anything. Never know when you may have to slow down in a hurry and you'll want all the braking power you can get..
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Old 04-10-2016, 08:16 PM   #9
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Thanks guys. Doesn't seem that hard to do so I'll order some pads/rotors and then clean up the rust around the rotor and caliper while it's off - anything else I should check while the wheel is off?
I always check the condition of those boots the pins slide in to and make sure the pins are sliding freely. If you haven't ever done this before its not too hard if all you're doing is replacing pads and rotors. I'm sure there's lots of YouTube videos out there showing the whole procedure..Thing is though, and maybe it's just me here but it looks like the rear calipers aren't working as they should. The rotors should be shiny and smooth, not rusty and pitted. Maybe the pads are just gone. You won't know until you tear into it but if you're not absolutely sure, take it to a shop you trust for a diagnosis. It's not worth taking a gamble on.
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Old 04-10-2016, 08:40 PM   #10
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I absolutely agree with all of the above advice; if you're mechanically inclined, disc brake replacement/overhaul is pretty simple and straightforward. Additionally, new calipers are inexpensive as well, but if you've got questions or doubts about your ability to replace them, don't mess around. Have a trusted mechanic/shop check it out.

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