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IS350 brakes do NOT fit IS250 AWD

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Old 04-20-11, 07:58 AM
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GSE25
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Default IS350 brakes fit IS250 AWD

Parts guy delivered the wrong part to my mechanic and they didn't double check the parts number smh.

Use IS350 AWD rotors if you plan on swapping IS350 calipers to your IS250 AWD.

Last edited by GSE25; 04-20-15 at 12:52 PM.
Old 04-20-11, 08:24 AM
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Jeff Lange
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Get IS350 AWD rotors?

Jeff
Old 04-20-11, 08:48 AM
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derfp2
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Or gs350 awd rotors will work...rwd rotors dont fit the awd's...What u have seen/heard was is350 rwd on is250 rwd's...Also make sure the caliper u got for the conversion fits the awd's setup...
Old 04-20-11, 08:58 AM
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GSE25
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^^ Thanks for the advice. Ordered the IS350 awd rotors and we'll see if they fit. Calipers came off a 2010 IS350.
Old 04-20-11, 09:44 AM
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dappy
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The IS350 AWD rotors should fit. Hope it works out.
Old 04-20-11, 10:14 AM
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derfp2
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post pics off finished work...
Old 04-20-11, 10:44 AM
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GSE25
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Test fittted the 350 awd rotors. No go as they are the same diameter as 250 awd and thicker. If I use these with the 350 caliper then I wouldn't be using the full contact area of the brake pads.
Old 04-20-11, 10:46 AM
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Gustavo250
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PM lexusis305 he's the man
Old 04-20-11, 10:46 AM
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Kdash106
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Please keep us updated, I am also doing this on my awd soon.
Old 04-20-11, 11:26 AM
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dappy
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J, you can contact Lexboi250. He had the same issue when he wanted to install 350 calipers and rotors.
Old 04-20-11, 11:53 AM
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WeisISF
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i wanna know too im be doing this soon
Old 04-29-11, 09:31 AM
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derfp2
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u prob tested the GS300 awd front rotors...The GS/IS 350 awd rotors r the 13.2 in ones...I think ur prob should not be doing this "DIY" since u kinda clueless, sorry...
Old 05-12-11, 08:27 PM
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sinister2c
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this probably why no one with an AWD had 350 brakes up front
Old 05-13-11, 06:25 PM
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nabbun
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That's weird. I know there is a solution to this problem. I bought a set of modified IS 350 brakes (rotors, ss brake lines and calipers) and he had them on his IS 250 AWD before trading that car in for his IS-F. I believe you needed to be on 18s also.

OK. I got it, you just gotta cut the dust shields where they are touching or bend them back. That's how ExclusivIS got his IS 350 brake kit modified to fit on his IS 250 AWD.
Old 05-19-11, 06:46 AM
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OPTiK
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Does everything fit with the stock 17 inch awd rims? Or do you need 18s? Any updates OP?


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