abasta4, the zr2 bars give a more truck type ride, most definatly stiffer, if some zr2 bars are easily found i say go for it, but i would not put a hard search and go out of my way to get a set, the improvment is not worth the effort, thanks for looking,
by the way, the rear tire carrier from a 2 door is worth it though, i just finished installing one, will have pics soon

they are 2 inch shackles