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Q:
BMW E30/E36 (and others) rear differential. Anybody know what size joints these are/what the pitch circle is? Anybody know how much these diffs weigh? Anybody know what the spline pattern on the end of them is? (28 by what diameter?) http://picasaweb.google.com/hugh.mccabe/BMWE30M3Project...#5104332800624268290 http://picasaweb.google.com/hugh.mccabe/BMWE30M3Project...#5104332852163876050 http://picasaweb.google.com/hugh.mccabe/BMWE30M3Project...#5104332856458843362 I'd like to run an E30/E36 "medium" size BMW differential with Miata uprights/hubsdriveshafts in a one-off vehicle if at all possible (Miata corners are convenient, but I need a tall ratio and lsd at sensible cost. Miata never relly made a tall ratio, and the specMiata folks nab all the lsds in short order anyhow) -- Marko |
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Email sent.
 Jason Stuffel - C&D Zodiac -Zips Racing Alum 03-06 |
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As far as I can gather they're a large lobro joint, and thanks to Jason the old "big six" differentials are 38kg/83lbs apiece.
-- Marko |
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They're the 108mm OD, 94mm pitch circle Lobro joints on the "medium" BMW diff, with 84mm pitch circle on the input flange.
SW2007 model available if needed. Miata driveshafts have a 4x100 bolt pattern on the ends. Not had it apart to chekc splines yet. -- Marko |
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