I have to install new shocks (any good bilstein sources?) and redo shackles which brings me to lifting. I see CCOT has shackles that can lift 1.5 or 2.5 inches (they are simply bigger than OEM). I was thinking about installing those while I was in there. Will I hav eto redo drive lines or anything else? Or, can I jst stuff the new shackles and shocks in there and call it all good? Thanks