Probably have coils on the front. you can buy the pucks for the front and back. 2" wont be a problem for the driveline as the heavy duty suspension just used a bit taller springs with the same running gear.
Or you can do like my friend Derek did....he went to pick and pull and pulled the springs and coils off one with the heavy duty factory suspension and just transfered it over. it was cheap and labor is free....LOL