ggrr i wanna use this one just dont want to offend any one>>>.
anyhow put it in 2wd and then the red screw is what you're going to unscrew...
then move the shifter inside the jeep all the way forward (it should slide easily)
Push it all the way down and then tighten the screw. Go inside and give it a try.
Do you have a bodylift too?