I have the TRD rims with 275/75/17 Firestone Destination At's. When I changed to my new tires I got rubbing in the front with the stock Trail rims. I had my alignment changed to move the tires forward closer to 4 degrees of caster. It is easier to move the fender liner forward then to have to remove or heat and bend the mud flaps. I just did the fender liner mod and everything was good. When I got the TRD rims, same Firestone tires, I didn't have to do anything more. You'll be fine, even if you need to adjust the caster, no big deal.
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