Hi every one, i would like to thank you in advance and i know that this question has been beat to death, but i found a set of 325/65/18 toyo open country's for $325. and i need tires bad but cant afford new ones right now. My question is will these tires fit on an 04 f150 fx4 with the stock fx4 rims. I currently have a 2 inch a/s leveling kit on the truck now, and want to up grade the lift and rim/tires at a later date. I am ok with the tirimming of plastic parts and if i have to do a wheel spacer that is ok to. ant help would be greatly appreciated and if you have pics please post. Thank you again for any help.<!-- google_ad_section_end -->

 

Here's a comparison of the two tires, as given by an online tire size calulator:

Stock Tire - 275/65R18
Section Width: 10.82 in 275 mm
Rim Diameter: 18 in 457.2 mm
Rim Width Range: 7.5 - 9.5 in
Overall Diameter: 32.07 in 814.57 mm
Sidewall Height: 7.03 in 178.56 mm
Radius: 16.03 in 407.16 mm
Circumference: 100.7 in 2557.7 mm
Revs per Mile: 648.5

Tire you're looking at - 325/65R18
Section Width: 12.79 in 325 mm
Rim Diameter: 18 in 457.2 mm
Rim Width Range: 9 - 10 in
Overall Diameter: 34.63 in 879.60 mm
Sidewall Height: 8.31 in 211.07 mm
Radius: 17.31 in 439.67 mm
Circumference: 108.7 in 2760.9 mm
Revs per Mile: 600.6

Will they fit? Most likely. But that's a wide tire for the stock wheel. IIRC that 18" wheel is 8.5" wide, right? It's not "recommended" that you put a 325 on an 8.5" wheel, but it'll fit. Might see some strange wear unless you get the psi just right.
The next thing to be worried about is what will the tire rub on. It's going to rub something, and while fender trim and plastic parts can be trimmed, your control arms cannot be.
Just a thought.
Good luck!


EDIT: Just realized that I meant 7.5" not 8.5" on the width.

 

the rub issue most likley will be into the rear of the fender well, to be honest i dont think its a good idea because your 18 will give little room to go out from 7.5in to almost 13 inches of tire, it will have 8.25 inches of sidewall to gain 5.5 inches of width. but still a good deal and may be a good to use later.