So my 2000 sr5 4x2 says 225/75/15 in the door like 90% probably do. My question is this. I bought it with 31/10.5s on it. They need replacing and I have no desire to shove big tires under a two wheel drive. Problem is that the rims are 15x7s and no 225 75 I've found will fit a 7" rim. Most 3rd gens I see run 16s which look factory. I know how to change section widths and aspect ratios to get a similar size tire. The spare is a firestone that fits fine. It has about 8.5 inches of section width hitting the road. So if you were me, and you kept the stock rims what tire would you run? Looking for a good ride and mpg.