I have a 1/2 ton that I have not liked the looks of for a while. Its a 03 chevy that has a body lift and torsion bars are turned. It makes it look like the truck is squating all the time. I am thinking about putting 3/4 ton leaf springs on the back to get the lift. (NO its not to hold or tow more weight I have a ton dump I use that for.) my question is will they for the most put bolt right up? or would I have to mod it.