my 2005 silverado sits about 1 1/2in lower in the back compared to the front. I already have a 4in lift block, 2in lift block, and a add-a-leaf on the rear. I am trying to figure out the easiest and cheapest way to get the truck to sit level or even a little taller in the rear. I was considering adding another add-a-leaf but will it actually lift it 1 1/2 - 2in like it says since it already has an add-a-leaf on it? Thanks for the help guys.