ou812 is right. Your rub is because of stock wheels (I'm guessing). Get some decent wheels with the correct offset and keep your own 80% driving habits in mind when you build. If you go on trails, your jeep can probably handle 80% of trails staying stock. Before you build it bigger get some good tools, an air compressor, a quality tire repair kit and even a winch. Get trail wise and after you have that experience...start building it using your own experience and your own tools.
I've seen too many new owners throw money into their new jeep and not have the experience to keep and maintain one. Experience is the best thing a new jeeper can attain.
D30 w/powertrax no-slip,D35 w/ultimate 35 upgrade OX locker,4.56 gears,Air on Board, Mile Marker Winch
Warn Lockout Hubs