If a carrier bearing exists in the rear driveshaft, a carrier bearing drop kit may be required. Power Wagon models came factory with a 2" taller ride height so the net lift gain will be 4" over the factory. Power Wagon models require sway bar link kit ZOND5301.The pitman arm included in this lift kit works on 2003-08 models with the factory steering box. If your steering box has been upgraded, this pitman arm will not fit and you should order the 2009 model pitman arm sold separately. To determine this, measure the sector shaft spline. The 2003-08 model will measure 1-1/4". The upgrade will measure 1-1/2".