Anyone done this?

http://www.hotchkis.net/sport_sway_b...f_150_4wd.html

http://www.streetbeatcustoms.com/Gro..._-9955/558094/

Is there a difference between the 2wd and 4wd front sway bars?

I'm assuming the drop kit pulls out the 2" block and so the backend would really be the equiv of the factory 2wd, but wondering how the extra 2" of rear drop affects the frame mounting location for the sway bar?