Just completed some brake pad research... there are a lot of choices!

The following are for the front - they are the Expedition / F250 non-SD part.

Hawk Brakes- http://www.hawkbrake.com/material.htm
HPS: HB299-F-650
HP Plus: HB299-N-650
HP Black: not available
HP Blue: not available

Porterfield- http://www.porterfield-brakes.com/
R4-S: AP702
R4 Carbon Kevlar: not available

Performance Friction- http://www.performancefriction.com/
Standard Carbon Metalic: 0702.20
Z-Rated: 0702.10

Ford (factory part)-
F75Z-2001-AA

I just ordered the Porterfield and Hawk... I'll post how I like them in a little while.

 

Bendix also makes pads that fit the Lightning