ford coil springs?

go to moog suspension site,,or any auto parts store can tell you as well

Why don't you take off your old springs and take them to a parts store. Tell them the make and year of your truck and when they bring out the parts see if you can match up your old springs with the new ones. I almost always bring my parts with me to the parts store because half the time they will give you the wrong part.

junk yard or your local auto parts store, its so much easier that way. also contact a local 4x4 shop they may have some decent springs that are used.