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Question on rotors!! 2003-2008

Old 01-02-2019, 06:15 PM
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Abundio
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Exclamation Question on rotors!! 2003-2008

Hello! im new to this forum but im asking a simple question
i bought some stoptech drilled rotors for my 2008 350z
but in the sticker it says for 2003 tro 2005 350z, will they fit in my 350z?
i need to know before i can idssaemsbly the tires and **** , thanks a lot!!!
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Old 01-02-2019, 07:37 PM
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There was a production change on Z33 brakes back with the 07-08 refresh. The standard brakes were increased in size and diameter. You should return the rotors you purchased and get the correct ones for your '08 Z before you start the work. If you have the Brembo brake option, there's a separate rotor spec for the front and rear of those as well.

Last edited by dkmura; 01-02-2019 at 07:38 PM.
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Old 01-03-2019, 04:51 PM
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dkmura is correct! Except I'm pretty sure the standard brakes (front rotors/calipers) were enlarged starting with the late 05 or early 06 model years and continued up to 08. I know this all to well because when I sold my old 06 standard brake rotors, I had a guy with an 03 or 04 G35 wanting to purchase them, obviously he didn't do his research and I brought this to his attention ending the sale.

As dkmura said, return them for the correct model/year range. The front rotors are larger diameter for 06+ standard brakes. Brembos are also unique, requiring different sized rotors.
-Icer
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Old 01-03-2019, 06:32 PM
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i mean now that i know they different, they fit in my 2008 , ? no matter if they smaller , but do they fit?
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Old 01-03-2019, 06:59 PM
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MicVelo
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Mind made up obviously.

Why ask if you don't want to follow the advice?
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Old 01-03-2019, 07:13 PM
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My friend brake/rotors stuff is not like car seats. I saw your post right after you posted but stayed away because I wasn't exactly sure. Luckily you got very knowledgeable members to answer. Just do the right thing and stay safe
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Old 01-03-2019, 07:46 PM
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Originally Posted by Abundio View Post
i mean now that i know they different, they fit in my 2008 , ? no matter if they smaller , but do they fit?
Hoo boy, let's make this perfectly clear. The rotors you bought will NOT function properly with the 2008 caliper and pad configuration. Brakes are designed to use a specific swept area and the rotors you have do NOT fit! 'Nuff said.
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Old 01-03-2019, 08:06 PM
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Oh wow, i think that's the answer i was looking for, now im scared for real, imma need to send them back ;(
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Old 01-03-2019, 09:07 PM
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Not to turn this into a dumpster fire discussion or anything but......

Technically they would fit, but this would also require your to replace your front calipers in order to achieve proper brake pad contact (As dkmura stated so eloquently). This would effectively be a downgrade and require a whole bunch more labor/money than simply returning/swapping rotors for the correct ones (not to mention adding confusion to the correct replacement parts the next time rotors/pads need to be ordered).

Good Luck!

Last edited by icer5160; 01-03-2019 at 09:08 PM. Reason: Correct Typos
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Old 01-03-2019, 10:38 PM
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Just return them, it's just the wrong part
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Old 01-04-2019, 08:28 AM
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Thanks a lot guys! Very quick and responsive, im already on my way with the return label
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Old 01-12-2019, 07:33 AM
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I came across a similar issue. I have a 2005 Enthusiast, bought slotted rotors from amazon for my year and found that they were a tiny pit larger and wouldn't fit under the caliper bracket.

Thankfully found a member selling his 2008 calipers (front/back) and bought them, so a slight upgrade. I have marked the calipers and rotors with the words '2008 350z' in a discrete place for the next owner, if there will be one.
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