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Old 08-09-2012, 01:13 AM   #17 (permalink)
Varn
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OD - '05 Ford Econoline
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Since this post is in the aerodynamics section, I would say that you you should go to narrow to get less aero drag. On my vw I went with 155/80 and got narrower more aero tires than the stock 175/70s.
My narrow tires are about a half inch taller than the ones I replaced.
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