width

Hey, guys! First post here, been poking around for a few weeks now and figured I'd start the beginning of asking all kinds of questions. So as it says, I have a 2001 Ranger Edge and I'm wondering how wide of a back tire I can get on it, but it's a little bit more loaded of a question than that...

Hey guys I was wondering what the width between both of the back seats folded out would be, I'm looking forward to putting 4 12s in my 03 Ranger and I need to know.