re: How difficult is it to install a leveling kit?

For my truck yes 2" is as close to level as I needed - it still has some factory rake but I don't like the looks when a truck is a little high in the front. The Bilsteins can be adjusted up to 2.8" I believe - plus the higher you go the more likely of damaging your ball joints is - 2" on most 4x4 trucks is plenty.