i have an 04 f150 screw fx4 and am bout to put the 2.5" leveling kit on it. what size tires can i put on the factory wheels? and was thinkin bout the nitto terra grapplers, any feedback?

 

same set up as you. Im running 325-60-18 with rub in deep turning

 

You can fit up to a 35x12.50 using the oem wheels. There will be some minor rubbing on the control arms at full steering lock however.

 

I had a set of the Terra Grapplers and they where great tires. I got about 40,000 miles out of them. They seemed to work best in the sand, but I never got stuck in the mud with them either. Additionally they are pretty cost effective and they look good.