Here's one for the spring experts. I have a 91 3/4 ton Suburban with a 350 eng. and 10 bolt front end. I have my old front springs off my 82 1 Ton Dually with a 454 and Dana 60. Does anyone know if these springs would fit my Burb? Would it lift it at all? Any idea how much? Is the spring rate stiffer? If you can answer all of the above questions, you are not only my Hero, but a Leaf Spring God! Thanks, Eric M.