97 Ranger 4.0L V6 adding a 4” RC suspension lift kit

[Lashore805]

Questions on how big tires I could go without modifying bumper or rubbing, stock is 215/70/14 I would like to go 31s but don’t know all the dimensions can anyone help me out?

 

[MikeG]

I've got 235/75r15 BFGs on mine. They rub the sway bar at full lock, but I think that's because I have Jeep wheels and the offset is a tiny bit wrong. At one time I had 30x9's (I think) and they rubbed worse, but again, wrong wheels. A quarter inch spacer helped. 31s, you'd want them to be on the skinny side, I'd think.