For Ford Expedition 1997 - 2002 2WD ONLY. Product type: drop spidle/lowering spindle. for Ford F-150 1997 - 2003 2WD ONLY. Drop height: 2" front. Lowering height: 2" front. How to Work. Ductile Iron QT450-10 excellent corrosion resistance, tensile strength, and yield strength.