Howdy all,

So I just picked up a new to me 2000 4wd Navigator with just about 204k on the clock. After doing some digging on here I've come to the conclusion to do the suspension conversion to be rid of the air suspension and taking it somewhere already I know I need to do my idler arm and pit-man arm, so I figured I wold go full hog and see about doing the inner and outer tie rods,front control arms/ball joints (upper and lower) and sway bar links while I'm at it since its all going to be apart anyways. This just comes into my questions as I'm trying to hunt down parts to do this and or a full front end kit, is the comparability on the upper and lower control arms the same on these and the Expeditions regardless of the air suspension or not? All the ones i have been finding for front upper control arms all seem to only fit 4wd/non air suspension, i imagine this has to do with the torsion bar? My next question I guess would be any advice or suggestions on the idler arm bolt spacing, or is it really as random as what I've been reading makes it out to seem on whether or not its the 63mm or 87mm?
I plan on keeping here hopefully for the next 100k miles as she still runs strong and is plenty rust free, which moving from East to basically West coast makes this quite the find for me. I appreciate any help and advice you guys give!