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As lazer(AK) pointed out, R230 is the TT rear end, R200 is NA. R230 (230mm) is larger (even larger than a Ford 9" rear end), R200 (200mm) is smaller and thus cannot handle as much power. I'm sure there are other factors (number of splines may have an affect as well), but that's the majority of the difference.
 I love elitists who aren't really elite in any way... they amuse me greatly. |
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