after days of searching trying to figure out what springs i bought i finnaly with the help of matt at 4wd.com and the great people at pro comp found out i have a 4" front and 2" rear coil lift from pro comp. now the question is would i be stupid to install a 4" front lift on a 08 unlimited rubicon with a heavy steel front bumper? my thinking is between the extra weight up front and the natural lower front angle of the rubi it should sit level at around a 3" front lift. the issue is i am not at the point cash wise to install a front driveshaft, would the extra weight make it possible to run stock shafts without definate failure? thanks