I got the 2.5AS on the way will 325/60/18s fit on stock navigator rims(i have a fake *** mark lt with navigator rims) or should i go with 305/65s? i think there 18x8.5 not sure backspacing. Also im probably gona need an AAL what one should i get? is There any alternatives because i had AALs in my ranger and the ride was not fun at all!!! Thank you very much!

 

I believe those wheels are 7.5 inches wide, which is a little too narrow for a 325mm wide tire. I'd go with the 305/65's. Out back you can use a lift block which wont' affect your ride.

 

x2..

 

do i just replace the 1" block with a 2" block will that give me enough? do i need bigger Ubolts to go an extra inch? thank you

 

are the stock blocks on an 04 fx4 1" or 1.5"?

 

The OEM blocks are 2 inches. I'd suggest replacing the OEM block with a 3 or 4 inch block, depending on the height you want.