The lowest you can go on the D30 is 4.88. Get them front and rear. Depending how hard you wheel, you might want to upgrade shafts in both axles, or at least have spares ready. Set your bumpstops to keep the 35's out of the fenders. Upgrade the front brakes, and away you go.
Daily Driver: Goodyear Duratracs or Falken Rocky Mountains.
Mostly Wheeling rig: Goodyear MTR/Kevlar, BFG MT's. I have 35" Procomp Xtreme MT's only because I got a great deal on them.....They are OK too.