looking to find out how big i can go with no modification. and should i just go to big o tires or somewhere like that?

33" with Melt Mod...Remember, it'a about the overall size of the wheel/tire that is 33.

Try doing a search for "tire size" and you'll get a few posts on this topic:


Example:

http://www.clubxterra.org/forums/showthread.php?t=5996&highlight=tire+size