i've got an 04 fx4 with a 2.5" leveling kit and 18" oem wheels will 325x60x18 nitto's fit on this setup ?

 

Yes, but a 325 mm wide tire is too wide for the OEM 7.5 inch wide wheels. There is a good chance the tires will not wear evenly. A lot of member have run 305mm and 315mm wide (12.50 inch) tires with no problems but that is pushing it. I wouldn't go with a 325/60-18 (33x13.00) unless you plan on adding wider aftermarket wheels in the very near future.

 

How about a 325x65x18 ? instead of a 325x60x18

 

Looking to buy nittos also. They do not suggest running those sizes on 7.5 rims. If you want them you will need at least 8.5 rims so you don't screw them up. I am planning on going with their 295/70/18 which is about 34"x 11.5" inflated. Their sizes are a little different if you start comparing them to say bfg. By the way my buddy just did the 3" leveling and 35x12.5x18 and they rub the the plastic if you turn from stop to stop. Even did some trimming too! FYI.