1979 traveler / 345 / 4bbl / tf727 / 44's front and rear. Pretty much stock traveler. Question: I would like to rebuild my 4" lift so that the sagging will be minimized after a while. It is a Rough Country 4" lift. I wanted to add a "half wrap" below the main leaf, not make the spring pack "stiff", but at the same time wanted good overall movement while off-roading . Is there a solution to this? I know that adding addtl leafs stiffen the ride, which is ok for street use, but not for off roading. Any suggestions?