Ive got a 85 Blazer with a 2.5 inch Rough Country lift. Now I was gonna go ahead and buy a 4" lift, but is there any possible way i can work with what i already have under the truck? I have a set of 4" blocks sitting in my garage. Can i take my 2" blocks out of the rear along with my add a leaf and then put in the 4"? Then i would be sitting with 4" of lift in the rear that would be takin care of. For the front now couldnt i add the add a leaf i took out of the rear and stick it in the others in the front? Just wondering..... Let me know what i can do. thanks for your time.