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David David is offline
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Join Date: Apr 2002
Location: Houston (Clearlake), TX
Posts: 9,326
I forget what my back spacing is, but I posted it so some searching should turn it up.

I agree that the 18's should work fine. The 930 has really beefy bearings and the 18's aren't any heavier than the 17's.
2014 Cayman S
2011 Cayenne Turbo
1979 930 (475 rwhp at 0.95 bar)
Old 02-13-2008, 11:47 PM
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