My bro has them on his F150, your still going to float around corners, have to go slow for speedbumps, etc. They are VERY floaty, hit a bump and its rough as hell. You bounce like you have cut springs. Also he's been through a few bags already. Really not something I'D like for everyday driving.
You might want to consider just a regular suspension drop. Try searching this forum for some info:
http://65.166.200.170/ubbthreads/pos...&view=&sb=5&o=