I have a 2000 navigator and for those of you who are wandering about lifting a navigator it isn't as hard as you think. For starters they are just a fancy expedition. I had an expedition and loved the one walnuts has so I wanted to lift the nav and I already had a torsion key and spacer kit and pa body lift for my expy when it was totaled. So I removed the springs and torsion bars from the expy and put them on the nav along with the lift items I had and ended up with six inches of lift by using expy parts so there itis use expy parts on first gen navs and easy lift