Dish soap works, but it's difficult to remove all the suds. An APC (all purpose cleaner) like Adams APC, Einszettes Blitz or even Simple Green works great for cleaning pads and rinses out very well. Clean and rinse them thoroughly in warm water using a pad cleaning brush and hang dry. I have a clothes line strung high in the garage with Velcro tabs on it. After I wash and rinse mine, I hang them there for a day or two, then put them in their individual baggies.
BlackFire make a great pad cleaner as well. I'll use an APC when I run out of BlackFire.
TundraTalk.net forum offers the most comprehensive collection of Toyota Tundra information. Find discussions on the Toyota Tundra Diesel, TRD Pro, SR5, lift kits, towing capacity, classifieds, and more!