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Old 07-15-2009, 01:55 PM   #9
Scooby Specialist
Member#: 159454
Join Date: Sep 2007
Chapter/Region: SWIC
Location: Mesa
2006 WRX CGM
6SPD Cornfed GT30R


Originally Posted by Crawdads View Post
All the Diffs care about is wheel diameter/revs per mile. (Going off of REAL measurements, not the size printed on the sidewall)

A matched set of tires is preferable, as they will wear in a consistent fashion...but Diffs can't read, so they don't care what brand the tires are.

Running tires that have the same dimensions, but different tread will not 'mess up your diffs'...the difference would be insignificant.
Agreed; the small insignificant difference in treadwear characteristics from other manufacturers or different tread patterns will NOT cause any damage. The circumference HAS to be the same.
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