The 2007 2008 expedition frame is more like the 2009 f-150. Ford developed this frame as a brand new design for this program, then used the design to encourage the new 2009 f-150. the front section which includes everything under the hood is almost identical between the two programs, considering the differences for 4wd vs 2wd. Everything behind that is different between the el and non el, as well as the many combinations for the different cab and bed sizes for the f-150. Between the two f-150 plants there are about 12 different frames. However they all have the same base design. All of the pre-2009 f-150's have a completely different frame design.