Okay so, I found these Nitto Trail Grapplers that are 325/65/18. Would they work on a 2004 F150 FX4 SCrew. I understand I will need to level it and I was recommended a 2.5" level. But Im still not sure if the tires are too wide or not. Anyone have experience or know?

 

Not on stock rims as they will be too wide. What rims you running? 325 on 7.5 inch rim not recommended.

 

stock 18s

 

That's a stretch for them. It has been done, but a 325 width on 7.5 is a stretch. I have 315 on 8 inch wide and it's a half inch over recommended. 325 with 65 profile may cause uneven wear although it has been done. It should fit with the level just wide for the stock 7.5 inch wide rim.