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      04-02-2019, 09:11 PM   #4
One28i
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I am on the similar thought process. I was planning on doing a complete F30 brake swap with 340mm rotor 4 piston fronts and 345mm rotor 2 piston rears, to learn that the rears don't fit as a direct swap. I was thinking of getting the E82 135i rear calipers and install those, but have not confirmed that that it is a direct fit either. on the F30 swap for the rears, the spacing and hole size was off, see the links below, of what has been done. also what complicates the process, is our rear hub on 128i is different from 135i and rest of E9X from my readings...

https://1.***********.com/threads/e8...-kit-f-r.2540/

https://babybmw.net/forum/viewtopic....10449&start=15

https://babybmw.net/forum/viewtopic.php?f=11&t=76490
this guy used E39M5 rotors...

some from the E9X sections

https://www.e90post.com/forums/showthread.php?t=1030156

https://www.e90post.com/forums/showt...828362&page=76

I am still looking for the full proof method before I buy all my bits and pieces.

let the discussion continue
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