my truck is a short bed, and like i said, the rear sat a teeny bit low until the coils settled (about a month), now the truck is level. actually, the rear is probably 1/4" higher than front now.
this guy has the best prices on D25's and Rancho shocks, with free shipping
http://hotrodoffroad.com/
these are great links for track bars, steering, and control arms.
http://www.dtprofab.com/dodge.htm
http://bulletproofsteering.com/pricingoptions.html
http://www.go2rdsi.com/racing/jeepstore.html
http://www.solidsteel.ca/DSS.htm
http://thurenfabrication.com/products.html
1) adj track bar will put your axle back in the center (left/right), as lift coils will cause it to move to one side a bit.
2) longer control arms will put the axle back center (fore/aft) as lift coild will cause it to move back a bit.
3) sway bar drop blocks, or adj sway bar links, will allow you to set the sway bar tension where you want it, as lift will cause the sway bar to be at an angle which increases its resistance (torsion).
4) longer bump stops will keep your shocks from bottoming.
if you just do coils and longer shocks, you should not have to do anything else for a while. the truck will drive just as straight as it did before. if you want perfection, do all four mentioned above.
when you lift the truck, you place more leverage on the suspension links and components. thats why people who do the 2" lift up front, who do nothing else right now (thats me currently $$$), will drive just fine for months or years... ... then all of a sudden they get death wobble. as you drive, the track bar wears out, and possibly the bushings on the control arms a teeny bit. maybe even the steering links and box get a little loose. all this because of more leverage.
if, when you do the 2" coils, you do an adj track bar, you will avoid alot of this wear (spread out all over the front end), as the new bar puts the axle back center, and the joints are way stronger and durable than stock to keep things put.
if you also do longer control arms, which also have stronger bushings than stock, you help even more.
lastly, if you really want to sturdy things up, get heim joint steering links, and a brace for your steering box
cheers