most 4x4 front 3 leaf spring packs are negative arch stock.(the way yours look now on the truck)


adding in a 2" add a leaf will make them flat with 0 arch.(flat like you want them to look)

4" lift spring have a positive arch for lift.(arched upward for lift)

IMHO,if you do not want a 4" lift kit the 2" add a leafs are the way to go,flatens the spring pack out up front,gives a 2" lift which works with stock chassis specs,still retain the stockish ride on/off road.

anything higher will need mods to the drive shafts and front steering specs.

the add a leaf will also fit the front with out changeing the 2 studs in the diff housing along with the 1 u-bolt on that side.