Can you do both ?

I bought a set of shackles that are suppose to raise the rear 1.5 - 2 inches, my question is after I put these on and if I end up wanting a little more lift can I put an "add a leaf" on the rear along with bigger shackles?  Just don't know if it will hurt anything or screw somthing up.
 
Thanks in advance

sure can

You can, but you would have a raked look, since you can only go about 2" in the front before needing to get the 5 or 6" lift kit