Hey guys, I just bought a 1999 Silverado extended cab short box step side. It has 265/65/r20 tires on it right now with American racing wheels. If I turn to sharp the front wheels rub on the fender. My question is can I go down to a 265/55/r20 and stop the rub also, is it going to look weird with smaller tires. I still have the factory spare which I believe to be a 16. If I were to get a flat can I use that spare or would it be better to get a 20 for a spare. Thanks in advance.