I bought a 98 Expd. A while back and since I got it have noticed that front sits much lower than the back and it seems to lean to the drivers side. The guy that owned it before me muct have been a pretty big dude cause the seat padding had to be replaced on the drivers side. So anyway I decided to order new front springs from ford but they told me there are two different spring codes. The code is on the sticker on the inside drivers door. I was wondering if anyone new if there is a difference in spring rate between these two springs. I have seen many that sit level and almost look like a 4wd but are not and am tempted to order the other code spring just to see if it may be a tad taller.