Ladder bars and coil overs. I have a 28x10.5 tire on it now just to drive it for the rest of the season. I'll probably switch to a big drag radial for next years. Plenty of room in the wheel wells once you get rid of the leaf springs. 16 inches to be exact. Real simple job too. This took me and one other guy 3 days to do and that was all done in between working normal jobs.