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I am new to the site and thanks in advance for the wealth of info I have already found here! I am wondering if I can get away with taller tires than the stock 215 60R 16's that come stock on my 05 Forester. I know I would take a hit on gas mileage but I travel some nasty dirt roads here in the wilds of New Mexico and I could use a beeefier tire if it doesn't cause gearing or clearance problems. Any ideas?