Hey I have a 1988 K5 blazer 350 4spd (granny tranny) that I bought from my uncle about a year ago, and I want to lift it a bit anywhere from 2 to 4"'s of lift. Right now I has 33' 12.5 BFG's, and I don't really want to go bigger because I don't wanna loose gas mileage. I was thinking to get a 2"...