18x9 5.71 back spacing how big can I go?

I'm picking up 18x9 wheels with 5.71 back spacing tomorrow and putting a 2-3" leveling kit on next week. I have surfed through the posts on tire sizes but get more confused the more I read. Just want to know how big of a tire I can put on without trimming any more then a little plastic and removing mud flaps if need be. Or without any mod at all with these wheels and a leveling kit. Thanks for the help. This site has been my new addiction since I bought my first 2nd gen Tundra a few weeks ago.

 

285/70/18 ? With these wheels? Can I go 295/?/18 ?? Took the front the mud flaps off today and got the wheels today. They are in the bed waiting for rubber. I like the wide stance look.