buffoon.....ummm whadatiz ? hahaha....
As the sayings go: "The only stupid question is the one you don't ask" and "if you don't know, you don't know, so ask 1st or be damned later !"
Anyways, I've seen pics of 18's on 3rd Gen Expy's, so they will fit in general.
However, some of the posts I've seen about this says that if they're off an F150, the offset & hub length might be a little different, so you may need some spacers or have to trim off the back of the center caps by about 1/8".
And yea, you will probably need new TPMS's too, and probably need to change some settings in the ECU to account for the different diameter & weight, so that it gives you an accurate speed reading & can interface correctly with the ABS module...