I've heard pretty good things about the Edlebrocks.

What will my FX4 have for shocks a year from now?

Thats a damn good question. Much more research to come....

 

The Rancho Branded shocks on the 01-03 FX4 package was a joke to Rancho. IMO, it hurt Rancho more than helped. The Rancho (and many other brands) aftermarket shocks are far superior to the OEM F-150 shocks, FX4 or otherwise.