You pretty much have to disasemble the front end on each side, steering knuckle, lower control arm, and coil spring. The spring is the most dangerous part. I would suggest that if you cannot get your hands on a really good stable coil spring compressor then for safety's sake I would let a shop perform the work. Those springs are under a lot of pressure and if one were to come out while removing the lower control arm it can literally kill you. There are a lot of spring copressors on the market but few are relly safe and the ones that are cost $$$$$. Try checking with a local parts house sometime they will rent them. Just my .02 worth.
2006 E350 98K miles
2013 Ford Explorer 15K miles