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Message: <blockquote data-quote="KustomAF" data-source="post: 2101759" data-attributes="member: 77406">I agree, safe bet with the ko2’s you’re running. 0 offset with a true 37 MAY have issues and those guys running them should chime in. I know of guys with 37x12.50-17 toyo mt’s on a 0 offset wheel and they had to CUT, not trim, but that’s what they wanted to run and they weren’t jumping their trucks either.   I just measured my new 37x12.50-17 OEM spec BFG at 36x10, even though their specs show 36.5x12.5 online. The sidewall bulge measures 12”, tread measures 10”. That’s a small ass 37/12.50. I measured my spare tire on a stock 8.5” wide wheel, inflated to 35psi, on the floor, against the wall with a straight edge other side. Measured the sidewall with a straight edge across it to the floor. So, I think that’s pretty accurate. If somebody really wants to run 0 offset and a bigger tire than stock BFG then don’t be afraid to trim a little IMO. Otherwise start measuring for the bigger tire and go a little more positive on the wheel offset accordingly. Or OEM spec 37 BFG on 0 offset and no rubbing like [USER=31053]@catinthehat85[/USER] is saying. I happen to like the look of a more positive offset and the least poke necessary. So, if you’re in that boat THEN you’ll have to consider if you’ll ever replace the UCAs and those specific specs.</blockquote>