I installed the Bilstein 5100s on my '11 F150 one setting below max height to get a little more ground clearance and it was just about level. As Alaskacub said, it rode nose up when I towed or threw gear in the bed. It drove me nuts so I installed an add-a-leaf. No problems with squatting after that. There are tons of threads about leveling kits, Bilstein 5100s, and similar height adjustable shocks (Fox/ Icon/ Boss) along with installation tips on F150forum.com. As others have said, you will need to have a wheel alignment after installation.
