Maybe.
Even if you do need one it is still drivable, just not ideal.
Put it together, see if it needs one. If it does, get one, if not, don't.
In an ideal world the drop pitman arm and relocated track bar fix all the steering geometery back to stock. Reality is that doesn't always happen. Depending on how picky you are it may be good enough. If you are really anal about having everything just right, you can't get it just right with stock suspension and need one without a lift.