Difference in Lariat 4x4 and FX4 suspension
AFAIK, yes. All 4x4 suspension is the same. The only addition to FX4's is the skid plates, which you can order on a Lariat, and the Rancho adjustable shocks, which you cannot factory order on a Lariat.
Rancho shocks are no longer available on the newer models of the FX4 2004-2006. They classified them as "offroad tuned suspension" The sticker, the skid-plate, accents, and interior. I never noticed any 2 inch blocks on my FX4


