20's - Search this forum, there are a few that do have Dubs, but providing that you have the correct offset and are able able to find a 225/30-20 size tire and your rim width is 7-8 inches wide, nothing.
I haven't checked lately, but if you go with a tire that is any larger, then you will run into too large diameter problems. You may still have to modify inside of the outside fender lips (bend in).
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