These Power Stop AR8567XPR rotors have helped eliminate the braking problems on my early 1999 F250 Superduty since it was released. I installed them a few months ago using a set of police pads. No more problems with brakes, soft pedal, rotor deformation, pedal pulsation. I also replaced the rear rotors with similar designs from the same company. These rotors are fantastic, much better than the original rotors. Definitely worth the extra dollars. Simply unpack, clean with brake cleaner and assemble.