If its the front there are some coil spacers, but I'd just get some new coils or some that are 1" taller. Coils are cheap; the front should be slightly higher than the rear (more weight up front). Everyone seems to have a taller lift in the rear? Seems odd if you don't pull a heavy trailer. I'm only talking 1/2" taller up front max otherwise it looks funny.
If its the rear then you can add a 1" block under the leafs to keep the same ride quality. Add-a-leafs will just cause a stiff harsh ride you will not be happy with.