Hello I have a 1992 2wd ranger and I am wondering what size lift I will need to clear 255/55R18s thanks a lot!

 

For what it is worth, I put the 4 inch Rough Country lift on my 1992 2WD and it is currently running 285/75/R16s. (32.8"x11.2"s) They "fit" but I do have a bit of rub on the front sway bar. Optimal would be a bit smaller.