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Old 01-13-2016, 06:26 PM
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What rotors are on my Jeep?

Hi Guys Ive been driving myself crazy the past week trying to figure out what size rotors I have on my Jeep. Its a 2012 Grand Cherokee Laredo X with factory 18" wheels.

I started with justforjeeps.com & based on my VIN, my setup is BRY. I looked this up and the rotors are 330mm; vented fronts & solid rears. But I also noticed that this particular setup is for 17" wheels. 18" wheels are for the BR1 or BR6 set up. But I understand those to be the HD brake set up....being 350mm vented front, 330mm vented rears. What the hell gives? I have called the dealership and they gave me the same story JFJ did, we can only see the code. I even tried Mopar directly & never heard back from them.

I have tried every brake website I can find and if I do Year/Make/Model, I am given the choice of 330mm/solid rear or 350mm front/330mm vented rear; or if I do the last 8 of the VIN, it gives the BRY code - but again, I don't have 17" wheels.....I have 18"

I really want to get aftermarket rotors since the factory ones are ugly & rust but I just cant seem to find a straight answer. Any help would be greatly appreciated. Thanks.

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Old 01-13-2016, 06:52 PM
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Re: What rotors are on my Jeep?

Walk out to your Jeep and see if your rear rotors are vented or not.
You can also take a measuring tape with you to check out the diameter.

BTW ...wheel size doesnt dictate brake size. Brake size dictates wheel size.

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Old 01-13-2016, 07:36 PM
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Re: What rotors are on my Jeep?

I went out and the fronts are vented. the rears are solid. I tried using a tape measure but I'm struggling to get a good look bc I cant take the wheels off (no tools/area to do so) and I cant get behind the wheel or go in from the back to get a good measurement bc of the hub. Never thought something like this would this much of a pain lol....
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Old 01-13-2016, 10:49 PM
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Re: What rotors are on my Jeep?

another thing....I just checked again, the rear rotors (which are solid) don't have a "cutout" around the hub. The rotor & hub meet flush. The front rotors have the cut out between the hub and the rotor face. the front calipers are a lot bigger as well....
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Old 01-14-2016, 11:33 AM
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Re: What rotors are on my Jeep?

These are my OEM rears.



...and my OEM fronts.




Looks like you have the 330mm front and rear like I did.
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Old 01-14-2016, 12:28 PM
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Re: What rotors are on my Jeep?

That's what I thought! Uh thanks a lot for the pictures. It's been driving me insane. Just to clarify, your front caliper is larger than the back?


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Old 01-14-2016, 02:44 PM
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Re: What rotors are on my Jeep?

Quote:
Originally Posted by ToneBone View Post
That's what I thought! Uh thanks a lot for the pictures. It's been driving me insane. Just to clarify, your front caliper is larger than the back?


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Yes...

Front


Rear
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