E46Fanatics - View Single Post - DIY E46 320 to 330 Rear Disk Brake Conversion Process
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Old 09-28-2009, 02:17 PM   #25
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Join Date: Jan 2006
Location: Cyprus
Posts: 6,698
My Ride: ESS TS2 320ci
After some careful measurements, Tim is 100% correct. 184.5mm is the internal drum diameter of a 330 rotor. The 330 shoe is almost identical with the 320 one, so I think I will weld a piece of metal to the 330 shoe and grind until I get the correct size. Then I'll make the CAD prototype and sell it here
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